找出错误的一项并改正。(10分)
(1)________
(2)________
(3)________
(4)________
(5) ________
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