问题
选择题
—Mary was heard_______ just now. What happened?
—John was telling a joke.
A.cry
B.to cry
C.laugh
D.to laugh
答案
答案:D
考查感官动词的用法。“听到某人做某事”hear sb. do sth.;在被动语态中,用to do sth.“有人听到玛丽笑了,发生什么事了?”“约翰在讲笑话。”故选D。