问题
选择题
The driver began to ________ to make up for the lost hours he'd lost in the traffic jam.[ ]
A. speed up
B. keep up
C. take up
D. catch up
答案
答案：A
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The driver began to ________ to make up for the lost hours he'd lost in the traffic jam.[ ]
A. speed up
B. keep up
C. take up
D. catch up
答案：A