Choose the answer that best completes each sentence
1. Some people fear that ________ air pollution may bring about changes in _______ weather around the world.
A. /; the B. the; / C. an; the D. the; a
2. Hiking by oneself can be fun and good for health. It may also be good for ______ building.
A. respect B. friendship C. reputation D. character
3. At the railway station, the mother waved goodbye to her daughter until the train was _______.
A. out of sight B. out of reach C. out of order D. out of place
4. The weather was cold that I didn’t like to leave my room.
A. really B. such C. too D. so
5. If a person has not had enough sleep, his actions will give him during the day.
A. away B. upC. in D. back
6. In those days, our ______ concern was to provide people who were stopped by the snow storm with food and health care.
A. true B. constant C. permanent D. primary
7. Of the two coats, I’d choose the one to spare some money for a book.
A. cheapest B. cheaper C. more expensive D. most expensive
8. I felt so bad all day yesterday that I decided this morning I couldn’t face ________ day like that.
A. other B. another C. the other D. others
9. The _________ shoes were covered with mud, so I asked them to take them off before they got into __________ car.
A. girl’s; Tom’s B. girls’; Toms’ C. girls’; Tom’s D. girl’s; Toms’
10. _________ felt funny watching myself on TV.
A. One B. This C. It D. That
11. --- I wonder how much you charge for your services. --- The first two are free _________ the third costs $30.
A. while B. until C. when D. before
12. According to scientists, our mental abilities begin to ______ from the age of 27 after reaching the highest level at 22.
A. differ B. shrink C. fail D. decline
13. The forest rangers often find campfires that have not been _______ completely.
A. faded away B. put out C. broken into D. kept off