问题

There was a _____ look on his face. He found what the expert said too difficult to understand.[ ]
A: puzzle
B: puzzling
C: puzzled
D: to puzzle
B: puzzling
C: puzzled
D: to puzzle
正确答案是:
同类题型
Unfortunately, I caught a bad cold and ached all _____ last night
The boy will _______ crazy if you do not allow him to use the computer.[ ]
________ is your friend —-He is a policeman.
I can’t follow you. Could you speak a little ___________
The teacher used to stay up deep into the night________, he made himself ill [ ]