—Catherine, I have cleaned the room for you.
—Thanks. You____ it, I could manage it myself.
| A．needn’t do | B．needn’t have done |
| C．mustn’t do | D．shouldn’t have done |
Is this the school______________you studied ten years ago?
| A．the one that | B．that | C．in that | D．in which |
You may___________he will come here to give us a hand.
| A．rely on | B．rely on it | C．rely on that | D．rely on it that |
Many audiences listened to his speech very attentively from the very beginning to the end, my parents ___________.
| A．included | B．containing | C．including | D．contained |
___________the car came out, we started doing market research.
| A．Before long | B．Long ago | C．Long before | D．Soon before |
.It is said that pandas ___________ in our country year after year.
| A．are being disappeared | B．are disappearing | C．will be disappeared | D．will disappear |