—May I ask a question after class，Sir?
— , but not during my lunch break.
| A．I am sorry | B．Anytime | C．Go ahead | D．Certainly |
With the rapid development of the city, he can hardly find the place __ he used to play with his childhood friends.
| A．where | B．when | C．there | D．which |
— I'm leaving tomorrow.
— Oh, what a pity! I won't be able to see you off. I __ a tele-conference the whole morning.
| A．have | B．am having | C．will be having | D．will have had |
__ is not possible that Bob can win the first prize in the competition.
| A．This | B．That | C．It | D．What |
— How come you are here?
— I came here for nothing else but to see you ____.
| A．by chance | B．in addition | C．at random | D．on purpose |
I didn't see your sister at the party. If she __, she would have met my brother.
| A．has come | B．had come | C．did come | D．came |