问题

I couldn’t help _____ when I heard thejoke
A:which
B:where
C:how
D:why
B:where
C:how
D:why
正确答案是:
同类题型
Jim with his classmates ________ the students from the USA.
She used to TV at home after supper. But now she is used to out for a walk.
giving a talk to a large group of people, the same talk I__________ to half a dozen other groups.
We tried our best and won the football match ____ one goal in the end