About 60 percent of the students ________ from the south; the rest of them ________ from the north and foreign countries.
| A．are; is | B．is; are |
| C．are; are | D．are;/ |
. He was ill. _____ is why he didn’t attend the meeting.
| A．This | B．It | C．There | D．That |
. —Shall I give you a ride as you live so far away?
—Thank you. _______.
| A．It couldn’t be better | B．Of course you can |
| C．If you like | D．It’s up to you |
If I _______ you, I would go with him to the party.
| A．am | B．had been | C．will be | D．were |
. —We’re going to Paris for Sylvia’s birthday. But it’s a secret.
—Is it? OK, I________ her.
| A．am not going to tell | B．will not tell | C．haven’t told | D．am not telling |
He ________ get into his own house because he has lost his keys.
| A．mustn’t | B．doesn’t have to | C．can’t | D．needn’t |