This problem may lead to more serious ones if ______ unsolved．

A．making

B．left

C．remained

D．keeping

Since starting Senior Three we have been busy reviewing lessons－even Sunday, ______ we could otherwise have a day off．

A．that

B．which

C．when

D．then

The plan ______ just because people were unwilling to co-operate．

A．put down

B．pulled down

C．turned down

D．broke down

The old couple hope that their only son can come back and make a ______ start．

A．fierce

B．casual

C．fresh

D．permanent

We ______; we used the back entrance to the music hall as VIPs．

A．didn’t need to queue

B．needn’t have queued

C．must have queued

D．could have queued

It’s a programme designed to ______ mainly to 10 to 16 year-olds．

A．refer

B．attach

C．contribute

D．appeal

It always snows at ______ Christmas, but I can’t remember ______ Christmas when it snowed so much．

A．不填；a

B．the; the

C．a; a

D．不填；不填

－I hear you are thinking of moving?

－We ______ a smaller house since our son’s marriage．

A．are looking for

B．have been looking for

C．have looked for

D．looked for

As long as I can remember, ______ I called, my son would answer．

A．before

B．while

C．until

D．any time

－You look awfully pale．______

－Actually, I’m not．I have a terrible headache．

A．What’s the matter?

B．Are you OK?

C．Are you cool?

D．How do you feel?