问题:
With so much noise of the traffic, I couldn"t ________ and do my research work.
[ ]
A. put down
B. settle down
C. break down
D. take down
With so much noise of the traffic, I couldn"t ________ and do my research work.
B. settle down
C. break down
D. take down
[ ]
A. put down B. settle down
C. break down
D. take down
参考答案: