问题

They studied _____ exams last month. [ ]
A: at
B: on
C: in
D:for
B: on
C: in
D:for
正确答案是:
同类题型
Can you tell me ____________?— In three days.
I’m afraid the meeting has begun. —-Don’t worry. It _________ until the bell _________.
The rain stopped us ______ there.[ ]
There’re ______ fish in the pond( 池塘). They’re very lovely.
My father likes to play badminton, but my mother likes to play piano.