16.It was not ______ she took off her glasses ______ I realized that she was a famous film star)

　　　 A when; that　　　　　　　 B until; that　　　　　　 C until; when　　　　　　　　 D when; then

15. ______ she is young, she knows quite a lot.

　A. When　　 B. However　C. Although　D. Unless

14. If it______ for the snow, we______ the mountain yesterday

　A. were not; could have climbed　　　 B. were not; could climb

C. had not been; could have climbed　　　 D. had not been; could climb

13.The pianos in the other shop will be ______, but ______.

　　　 A cheaper; not as better　　　　　　　　　　　　　　　 B more cheap; not as better

　　　 C cheaper; not as good　　　　　　　　　　　　　　　 D more cheap; not as good

12.After the new technique was introduced, the factory produced ______ tractors in 1988 as the year before

　　　 A as twice many　　　　　 B as many twice　　　 C twice as many　　　　　　 D twice many as

11.Not until I began to work ______ how much time I had wasted.

　　　 A didn’t I realize　　　　 B did I realize　　　　　 C I didn’t realize　　　　　　 D I realize

10.The new secretary is supposed to report to the manager as soon as she ______.

　　　 A will arrive　　　　　　　 B arrives　　　　　　　　 C is going to arrive　　　　 D is arriving

9. ______ the day went on, the weather got worse

　　　 A With　　　　　　　　　　　 B Since　　　　　　　　　 C While　　　　　　　　　　　　 D As

7.Not until the early years of the 19^th century ______ what heat is.

　　　　　 A man did know　　　　　 B man knew　　　　　　 C didn’t man know　　　　 D did man know

you make sure ______ the gold ring?

　　　 A where Alice had put　　　　　　　　　　　　　　　　 B where had Alice put

　　　 C where Alice has put　　　　　　　　　　　　　　　　 D where has Alice put

6.These photographs will show you ______.

　　　 A what does our village look like　　　　　　　　 B what our village looks like

　　　 C how does our village look like　　　　　　　　 D how our village looks like