The spokesman said that this was a（n）____negotiation （谈判） because it solved a lot of problems between the two sides．
| A．attractive | B．defensive | C．protective | D．productive |
I have to see the doctor because I a lot lately.
| A．have been coughing | B．had coughed | C．coughed | D．cough |
Considering his health, I advise him to ______ an hour or two each day to work out.
| A．set about | B．set off | C．set up | D．set aside |
——Will you come to my office when youyour work?
——Sure.
| A．finished | B．are finishing | C．have finished | D．will finish |
Tom, you’ve got a "D" in chemistry．____?
—Well, I find the subject hard and I think I’ll drop it for history next term．
| A．What if | B．How come | C．Why not | D．So what |
for the timely investment from the general public, our company would not be developing so fast as it is.
| A．Had it not been | B．Were it not |
| C．Was it not | D．Should it not be |