The chairman thought ________ necessary to invite Professor Smith to speak at the meeting.
| A．this | B．what | C． it |
D．that |
-We need a drink．I'm really thirsty
-_______．Let,s have one．
| A．Generally | B．Strictly | C．Exactly | D．Possibly |
They left without leaving a message，_____was more than we had expected．
| A．what | B．which | C．that | D．when |
Say“Cheese”but keep_____while I take your photograph．
| A．quiet | B．calm | C．still | D．silent |
Before you make a plan，you,d better_____the advantages and disadvantages of it．
| A．take | B．weigh | C．feel | D．judge |
-What do you think of the film Avatar?
-It__be better．I even want to see it twice．
| A．won,t | B．couldn,t | C．shouldn,t | D．mightn,t |