A： Would you like to go to the concert after supper?
B： I have to look after the twins at home tonight.
| A．That’s great. |
| B．I’m afraid I can’t. |
| C．Sure, please go ahead. |
| D．No, thanks. |
Robert is said _______ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to study | C．to be studying | D．to have been studying |
________leaves the room last ought to turn off the lights.
| A．Anyone | B．The person | C．Whoever | D．Who |
Great changes have take place in that school. It is no longer ______ it was twenty years ago, _______ it was so poorly equipped.
| A．what; when | B．that; which | C．what; which | D．which; that |
It is ______ that the US president will visit our country next month.
| A．likely | B．probably | C．possibly | D．perhaps |
--- Do you mind if I open the window?
--- ________ I feel a bit cold.
| A．Of course not | B．I’d rather you didn’t | C．Go ahead | D．Why not |