你想知道教师办公室在哪里,你会问:
We are singing a song ________ English. A.at B.in C.for
How many ________ are there in your class? A.boy B.girls C.book
What do you have ________ breakfast? A.at B.for C.with
It's twelve ________. A.oclockB.a clock C.o'clock
It's time ________ get up. A.to B.for C.four