1.We decided not to go out for meal _________ we were too tired.
A but B. because C. so D. and
2.My shoes are dirty. I’d better take them ________before I come in.
A. aways B. up C. on D. off
3.If you want to save money, you should ________he amount of water your family uses.
A. increase B. reduce C. adapt D. repair
4.Who is going to __________ your children when you’re at work?
A. look for B. look up C. look after D. look out
5.Mary’s eyes are weak, __________, she has to wear glasses.
A. but B. however C. and D. therefore
6.If there is a mechanical problem, we suggest _________ the manufacturer directly.
A. contact B. contacting C. to contact D. be contacted
7.Our energy will soon come to an end if we don’t__________ it.
A. use B. save C. spend D. take
8.The children like to put ___________- nice clothes when they go out.
A. in B. off C. into D. on
9.I like bananas, __________my brother doesn’t.
A. because B. but C. and D. even though
10.Please turn __________ the gas. I want to cook my lunch.
A. over B. on C. in D. over
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