Choose the best answer to complete these following sentences.
11.He is tired ________ he stayed up late watching TV.
A. so B. because C. but D. and
12.Her parents saw her _________ at the railway station.
A. in B. for C. up D. off
13.Can you turn ................ the light? It's too dark.
A. on B. off C. in D. for
14. What are you looking ..................... ?.My picture book. I've lost it.
A. for B. off C. in D. on
15. There are ............ saving methods and inventions to use solar energy.
A. energy B. energize C. energetic D. energetics
16. I had to pay much money this month for the international………………..
A. calls B. calling C. W call D. called
17. A new air-conditioner will be ................... this morning.
A. installed B. to install C. installing D. to install
18. Scientists are looking for an ..................... way to reduce energy consumption.
A. effective B. affection C. effect D. effectively
19. We can ______ easily in the daylight.
A. read B. to read C. reading D. readed
20. She won’t take all these suitcases______ she likes to travel light .
A. because B. but C. so D. therefore
21.They are completely short of water now. A number of people have died because of this____
A. shortage B. short C. shorten D. shortly
22. She is very tired. ______,she has to finish her homework.
A. however B. so C. and D. moreover
23. Is he an actor ______ singer?
A. or B. and C. with D. so
24. He’s tired ______ he took a rest before continuing the work.
A. so B. and C. but D. if
25. She forgot ______ off the gas before going out.
A. turning B. turn C. to turn D. turned
26. I suggest ______ money for the poor people in our neighborhood.
A. saving B. to save C. save D. saved
27. Who looks ______ your children when you are away from home?
A. after B. at C. for D. to
29. We decided not to go out for meal ______ we were too tired.
A. but B. because C. so D. and
30. My shoes are dirty. I’d better take them ______ I come in.
A. away B. up C. on D. off
31. If you want to save money, you should ______. the amount of water your family uses.
A. increase B. reduce C. adapt D. prepair
32. In order to save electricity, an ordinary 100-watt light bulb can be replaced by ______.
A. a 1000-watt light B. a lamp C. an electric bulb D. an energy-saving bulb
33. Who is going to ______ your children when you’re at work?
A. look for B. look up C. look after D. look out
34. Mary’s eyes are weak, …… , she has to wear glasses.
A. but B. however C. and D. therefore
35. If there is a mechanical problem, we suggest ……. the manufacturer directly.
A. contact B. to contact C. contacting D. be contacted
36. ……. put on the guests on the first floor?
A. Why don’t we B. I suggest C. How about D. Let’s
37. My mother has just bought a house _______________ is full of roses.
A. whose garden B. the garden C. the garden of it D. the garden whose
38: Today young generation is still fond ……………….wearing jeans.
A.about B.with C.of D.on
39. Lan dropped his watch when he was...............the bus .
A.turning off B. getting off C.taking off D.going off