The girl in the classroom ______ be Maria. She called me from the library just now.
| A．mustn't | B．may not |
| C．can't | D．needn't |
Our school has two months ______ in the summer time.
| A．away | B．of | C．out | D．off |
_______ all the pop singers, I like Xu Song ________ because of his voice．
| A．Among , better | B．Among , best |
| C．Between , best | D．Between , better |
She is one of _________ in our class.
| A．the slimmest girls | B．the slimmest girl |
| C．the slimmer girl | D．slimmest girl |
We have to the questions before answering them.
| A．look after | B．look up |
| C．look through | D．look at |
He often knocks our books _______the floor.
A. into B. onto C. off D away