问题
选择题
It_____ have been Tom that parked the car here, as he is the only one with a car.
A．may
B．can
C．must
D．should
答案
C
考查情态动词表猜测的用法。由as he is the only one with a car. 可知一定
可知一定是他把车停在这里的，较为肯定的推测。
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