题目内容
—Mary was heard ________ just now. What happened?
—John was telling a joke.
—John was telling a joke.
A.to cry | B.laugh | C.to laugh | D.cry |
C
试题分析:在使役动词make, let等及感官动词listen, hear等主动语态中,to要省略,但在被动语态中,to不可以省略。句意:结合语境可知既然是笑话,肯定被听到在笑。由于Mary被听到笑了,是被动语态,后面的to不能省略。选C。
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