----Stay a bit longer, please. It's been such____pleasure having you here.
----Thank you, but I've got____early start tomorrow morning.
| A．the;an | B．/;an | C．a;an | D．/;the |
We are still at the airport．If it weren’t for the delayed flight, we _______ the concert right now．
| A．can be enjoying | B．must have enjoyed |
| C．would be enjoying | D．should have enjoyed |
_____ his research paper, Professor Reagan experienced various hardships and loneliness for nearly half a year．
| A．Accomplishing | B．To accomplish |
| C．Accomplished | D．Having accomplished |
____ the flight to New York will be delayed is _____ I’m especially worried about．
| A．When; what | B．Whether; that |
| C．When; that | D．Whether; what |
---Have you finished your composition already, Jack?
---Yes, I ____ it within half an hour．
| A．have finished | B．finish |
| C．finished | D．had finished |
---Can you tell me Sam’s telephone number?
---_________．Who is Sam? The newcomer?
| A．I think so | B．That’s OK |
| C．I’d rather not | D．I’m afraid not |