A. No matter B. How C. Whatever D. However
20. ____, he never shows off.
A. Knowledgeable is he as B. Is as he knowledgeable
C. He is as knowledgeable D. Knowledgeable as he is
21. As we all know, the more we practise, ____.
A. we will acquire the 0more details B. the more details will we acquire
C. and the more details we will acquire D. the more details we will acquire
22. Only when something gets lost, ____.
A. you can realize how important it is to you
B. how important you can realize it is to you
C. can you realize how important it is to you
D. realize you how important it is to you
23. It’s only when something gets lost ____.
A. can you realize how important it is to you
B. how important you can realize it is to you
C. that you can realize how important it is to you
D. that can you realize how important it is to you
24. In order to prepare for the college entrance examination, it was ____.
A. not until midnight did he go to bed B. until midnight that he didn’t go to bed
C. not until midnight that he went to bed D. until midnight when he didn’t go to bed
25. ---Tom, can’t you be careful? You have left out some figures in your calculations. ---Oh, ____.
A. so am I B. so have I C. so I am D. so I have
26. Not only ____ saving material and resources but ____ trying to save water and energy.
A. all factories are; most of the families are B. all factories are; are most of the families
C. are all factories; are most of the families D. are all factories; most of the families are
27. So fluently _____ that ______.
A. does he speak English; is he considered as a native
B. he speaks English; is he considered as a native
C. does he speak English; he is considered as a native
D. he speaks English; he is considered as a native
28. Off the coast ____ with several fishing villages located there.
A. does an island lie B. lies an island C. an island is lying D. an island lies
29. He was doing his homework ____ the light went out.
A. when B. while C. before D. until
30. Why did you use my cell phone ____ you had your own one? To save your money?
A. as B. where C. while D. when