1. If people can................... wastes, they will save a lot of money.

A. rebuild B. reduce C. reuse D. use

2. In the future, we won't go on holiday to the beach but we............ go on holiday to the Moon.

A. must B.can't C. might D. won't

3............the air is cleaner; people will have less breathing problems.

A. Unless B. When C. If D. Because

4. I might have a smartphone....................... the Internet.

A. surf B. surfing C. to surf D. to surfing

5. '' What can we do ......... air pollution?

A. reducing B. to reduce C. reduce D. to reducing

21. "Do you think we will                  holiday to the Moon?"

     A. go            B. go on                            C. go on the                      D. go for

22. "Will you have a car                     can fly into space?"

     A. it             B. this                                C. what                             D. that

23.  We will use special cards to               the doors and               the engine.

     A.open - stop     B.open - start              C.control - stop     D.drive - start

24.  "Do you think that our houses will be                        space?"

     A. in             B. on                                 C. at                                  D. to

25. Our future houses will use                   energy, and theyare very friendly to the environment.

     A. sun          B.sunny                             C.solar     D.lunar

26.  We will have more robots                  they can help us do housework and protect our houses.

     A. so            B. because                         C. so that                           D. although

27.  A super smart TV will help us                        goods from the supermarket.

     A.take          B.buy                                C. carry     D.order

28.  We will have a robot in the garden                the flowers and                 the dogs and cats.

     A.cut - take  B.water - feed                   C.feed - take     D.water - to wash

29.  With a smart watch, you will             your friends in other countries.

     A.speak        B. talk                               C.say     D.contact

30.  Robots will help us do the housework such as                       the floors,         meals and so on.

     A.clean - cook   B.to clean - to cook    C.cleaning - cooking     D.cleaning - to cook

mn giúp mk với ạ!!!