问题
选择题
You very fast if you went from New York to Boston in six hours.
A．should drive
B．must have driven
C．may drive
D．would have driven[
答案
答案：B
句意为如果你是从纽约到波士顿六个小时之内到的话，你一定开的很快。由went 可知是过去，此题考查推测，must have done 是对过去事情肯定的推测，因此选B。