|
19. This problem will be ______ discussed in Chapter 2.
A. deep
B. enough
C. further
D. farther
20. ______ your courage in time of difficulties.
A. Keep down
B. Keep out
C. Keep on
D. Keep up
21. My old school friend had changed so much that I could hardly ______ him.
A. recognize
B. remember
C. know
D. make out
22. He went to the bookstore and ______ two books for his daughter as a birthday present.
A. took up
B. picked off
C. picked up
D. picked out
23. It is not easy to ______ oneself of a bad habit.
A. purify
B. dismiss
C. release
D. rid
24. The actors have to ______ before they appear in front of the strong lights on television.
| 
