题目内容
I was on the highway when this car went past followed by a police car.They ________ at least 150 kilometres an hour.
[ ]
A.should have been doing
B.must have been doing
C.could have done
D.would have done
答案:B
提示:
提示:
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“当这辆被警车追踪的车驶过时,我正好在高速路上。他们每小时的时速至少是150公里。”do代替了drive。推测过去情景,且强调当时,用了进行时态。 |
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