Choose the best answer to complete the sentences.

1.If there________ no gravity, you do not weigh anything (be/is/were/was)

2.If you________ a report, you'll have to prepare it carefully.(do/did/will do/would do)

3.If Hoa_________ home, she'll tell her parents about her result.(call/ calls/calling/will call)

4.If the local authorities ___________ littering, the environment will become bad. (don't prevent/not prevent/will not prevent/ didn't prevent)

5.If I___________ an astronaut, I would observe the Earth from the moon. (be/is/were/was)

6.I__________ to Lan's birthday party if she invites me. (go/will go/ went/gone)

7.If solar energy is used widely in the future, the environment ____________ .(will be protected/ will be protect/would be protected/would be protect)

8.If the teacher_________ us some homework, we have to stay home and do it. (gives/give/ will give/gave)

9.Their parents would be happy if they ________ the final exam. (passed/pass/will passed/would pass)

10.Please let me know if the teacher___________ .(will come/comes/coming/come)

11. If you______ to pass the exam, you should try harder. (wanted/want/will want/wants)

12.If I had time, I __________ the poor children with studying. (helped/help/will help/would help)

13.If I saw a UFO, I _____________ surprised. (not be/would not be/were not/ won't be)

14. If people destroy the rainforest, rare animals ____________. (would be killed/will kill/ will be killed/ would kill)

15.They will pass the final exam if they _________ hard. (will study/ studied/study/would study)

Complete the passage with the suitable words.

Health is something we tend to ignore when we have it. When our body is rather well, we're hardly ever (1) .......... of it. But illness can come, even (2) ........... we are young. In fact, childhood has been a very vulnerable time. Many (3) ........ attacked children in particular and people knew very little about how to prevent such illness or how to (4) ........ them once they struck. The resuft was that many children died. About century ago, however, scientists found out about germs, and then everything (5) ........ The cause of many diseases (6) ........ known, and cures were developed. As this medical knowledge spread the world became (7).......... safer for children. The resuft is that whereas a hundred years ago the average man lived for 35 years. Nowadays, in many places of the world, people can expect to (8)........... for years. And what do we except by the years 2010 ? Undoubtedly, (9)....... science will continue to advance. Some people will be able to (10).......... medical problems that are unavoidable today.

III. Choose the best option marked A, B, C or D to complete each sentence

1. If I were you, I ………………..  do something to prevent him from littering.

A. would                B. did                     C. will                    D. do

2. Earth ……………..… by the gravity of the Sun and orbits around it.

A. holds                 B. is held               C. is holding                    D. held

3. By the time we …………………. to the cinema, the film had started.

A. gets                   B. had got              C. has got              D. got

4. When the policeman came there, the robber  …………….…

A. had left              B. has left              C. left                    D. was left

5. All people who were without homes in the flood were provided with ...… accommodation.

A. short                  B. temporary          C. present              D. instant

6. Seven of ten people prefer face-to-face …………….… when having a date.

A. language           B. contact               C. code                   D. sign

7. When thermal pollution happens, the water temperature in streams, rivers, lakes and oceans ……………... .

A. changes             B. keeps                 C. remains             D. stays

8. Australia is home to ……………. animals like kangaroos and koalas.

A. only                  B. rare                    C. unique               D. precious

9. Don’t drink that water. It’s ………………..

A. damage             B. dumped             C. contaminated     D. destroyed

10. If this factory continues ……………poison  into the lake. All the fish will die.

A. pouring             B. dumping            C. pumping            D. sacking

1. Climate changes will definitely cause sea levels to rise.

bound Sea levels ……………………due to climate changes.

2. A number of animal species will soon face extinction.

verge A number of animal species …………………………..……extinction.

3. If they hadn't helped, .the park wouldn't have been built.

help But………………………….the park wouldn't have been built.

4. The project on the Amazon rainforest will be complete by the end of week.

have The project on the Amazon rainforest ……..……..by the end of the week.

5. If we don't do more to prevent forest fires, there will be serious consequences for wildlife.

done There will be serious consequences for wildlife if…...........prevent forest fires.

sap xep

1. transport/ Ari/ faster/ other/ kinds/ travel/any/is/than/of/./

2. from/ we/ what/ do/ throwing/ people/ cans/ can/ to/ away/drink/ prevent/?/

3. learn/ heart/ try/ new/ by/ words/ the meaning/ of/ to/./

4. The/ been/ luckily/ I/ but/ meeting/ late/ had/ arrived/ delayed/./

5. dangerous/ the/ and/ canoe/ water/ everyone/ and/ the/ fell/ into/ deep/ overturned/./

6. San Francisco/ did/ the/ where/ Mrs Quyen/ in/ see/ prison/ famous/./

7. sister/ and/ my/ I/ like/ would/ parents/ you/ meet/ to/my/./

Choose the correct options.

1. “Will you be able to / Can you hear the bell in your classroom?”

“Yes, we can. It's really loud!”

2. In the future, we could / will be able to do all our exams online.

3. At my last school, we won't be able to / couldn't use tablets in class.

4. These days, many students can / could find out what their homework is from the school's website.

5. “In the past, will students be able to / could students use computers in class?”

“No, they couldn't.”

6. Turn the music down. I can't / couldn't study.

Exercise: Fill each blank in the following passage with one suitable word.

Health is something we tend to ignore when we have it. When our body is rather well, we're hardly ever (1)...... of it. But illness can come, even (2) ........ we are young. In fact, childhood has been a very vulnerable time. Many (3)....... attacked children in particular and people knew very little about how to prevent such illness or how to (4)........ them one they struck. The result was that many children died. About century ago, however, scientists found out about germs, and then everything (5)........ The cause of many diseases (6) ........ known, and cures were developed. As this medical knowledge spread the world became (7)........... safer for children. The result is that whereas a hundred years ago the average man lived for 35 years. Nowadays, in many places of the world, people can expect to (8) ..... for years. And what do we except by the years 2010? Undoubtedly, (9) .......... science will continue to advance. Some people will be able to (10) ....... medical problems that are unavoidable today.

Mấy chế ơi giúp con vs ag!