—The light is still on in his room. Do you know ___________ ?
—Maybe he has to study for a test.
| A．if he works hard |
| B．who he is studying with |
| C．what he is busy with |
| D．when he will stop working |
—Tommy, don’t make a mess in your room.
— OK, mum. I will ______ my toys at once.
A. connect to B. play with C. put away
—Oh, you have made the same mistake again．
—______. I’ll be careful in future．
A. So have I B. So do I C. So I have
—I saw Jane on the street just now.
—It ______ be her. She went back to Canada yesterday.
A. can’t B. mustn’t C. needn’t
—I’m sorry to have kept you ______ for such a long time.
—It doesn’t matter.
A. wait B. waiting C. to wait
Jack had to stop working though it was ______ his own wishes.
A. on B. for C. against