13. The students of Class 7A have three _______ a day.

A. 15-minute break                                      B. 15-minutes break    

C. 15-minutes breaks                                   D. 15-minute breaks

14. There are ----------- art galleries in this city.

A. a number of         B. a great deal           C. a many                  D. lots

15. What kinds of ------------- do you like? - I like cartoons.

A. films                     B. books                  C. pictures                D. magazines

16. You should ----------- your hands before meals.

A. wash                      B. washed               C. washes                 D. to wash

tính từ ghép 15-minute ko có s, còn breaks mới có s vì có three ở trc mà:)))

D 

6. In ___________ ,we do some experiments.

A. Physics B. History C. English D. Literature

B

How often students have a five-minute break?
Câu này mình k chắc đúng ạ=))

Student have two ...... each day

A 20 minutes breaks

B 20- minutes break

C 20 minute breaks

D 20- break minutes

Student have two ...... each day

A 20 minutes breaks

B 20- minutes break

C 20 minute breaks

D 20- break minutes

American students have two .... each day.

• A. 20-minutes breaks
• B. 20-minute breaks
• C. 20–minute break
• D. 20–mintutes break

Mk nghĩ vậy

American students have two .... each day.

• A. 20-minutes breaks
• B. 20-minute breaks
• C. 20–minute break
• D. 20–mintutes break

1. A three-month summer vacation 

2. A six-day tour 

3. A ten-minute rest

4. A five-hundred-dong stamp

5. A two-period class

6. A two-hour meeting 

7. A ten-day trip

8. A fifty-mile road

VI. Viết thành các tính từ ghép (compound adjectives).

1. A break lasts twenty minutes.

=> A twenty-minute break

2. A summer vacation lasts three months.

=> A three-month summer vaction.

3. A tour lasts six days.

=> A six-day tour.

4. A rest lasts ten minutes.

 => A ten-minute rest.

5. A report longs three pages.

 => A three-page report.

6. A stamp costs five hundred dong.

=> A five hundred-dong stamp.

7. A class lasts two periods.

=> A two-period class.

8. An essay has three paragraphs

=> A three-paragraph essay.

1. They have two twenty-minute breaks
    a.They have a break that lasts twenty minutes 
    b.They have twenty breaks that last two minutes
    c.They have two breaks that last twenty minutes
    d.They have a break taht lasts two minutes