Go on ________ the other exercise after you have finished this one.
| A．to do | B．doing |
| C．with | D．to be doing |
It has been a long time for human to make _____ to reach the moon.
| A．its easy | B．it’s possible | C．it truth | D．it possible |
—Hi, Tom. Any idea where Jane is?
—She_______in the classroom. I saw her there just now.
| A．shall be | B．should have been | C．must be | D．must have been |
The boy_______on the ground_______that he_______the book on the table.
| A．lied;lied;laid | B．lying;lied;laid | C．lied;lay;lay | D．lying;laid;lay |
You must apologize_______your mother_______your rudeness.
| A．to; to | B．for; to | C．to; for | D．for; for |
—Is John coming by train?
—He should, but he_______not. He likes driving his car.
| A．must | B．can | C．may | D．need |