Lin Dan, the two-time defending world champion, raced to a 7－0 lead in the second game, ________ a stunned Lee Chong Wei started to even find his rhythm．

A．before

B．after

C．since

D．once

On the bank of the river, we found him ________ on a beach, with his eyes ________ on a kite in the sky．

A．seated; fixing

B．sitting; fixing

C．seated; being fixed

D．sitting; fixed

I feel sure that ________ qualification, ability and experience, you are abundantly suited to the position we have in mind．

A．on account of

B．in terms of

C．on the basis of

D．in the light of

The painting is so valuable that it is difficult to calculate ________ its price would be if the museum wanted to sell it．

A．that

B．which

C．what

D．/

－Did you find the missing couple in the mountain yesterday?

－No, but we ________ to get in touch with them ever since．

A．have tried

B．have been trying

C．had tried

D．had been trying

－I’m not good at basketball, you know．

－________ We’re playing for fun．Just try and you’ll see you can do it．

A．Well, it depends．

B．Take your time．

C．Come on!

D．That’s OK．

－What has happened here?

－There was ________ accident here about an hour ago, ________ car hit a tree and ________ driver was killed．

A．the; a; the

B．an; a; the

C．an; the a

D．the; the; a

－Did Tim come back a little earlier last night?

－Yes, it was not yet twelve o’clock ________ he arrived home．

A．why

B．when

C．that

D．which

－I’ll be able to come to see your performance at 8∶30 tomorrow evening．

－I’m sorry, by then my performance ________ and I ________ reporters in the meeting room．

A．will be ended; will meet

B．is to end; will meet

C．will have ended; will be meeting

D．will be ended; am going to meet

Without my glasses, I couldn’t ________ whether that figure on the blackboard was a three or an eight．

A．make out

B．make up

C．make for

D．make off