You’d better ______ too much time _____ football.

　　A. not spend, on B. not spend, play C. not to spend, on D. don’t spend, for

 The price of the coat is so ______that I can’t buy it.

　　A. expensive B. valuable C. low D. high

 A: I’m sorry I stepped out for a smoke, I was tired.

　　B: There is no______ for this while you are on duty.

　　A. reason B. cause C. time D. excuse

Your homework is all right, _____, you can do it better, in my opinion.

　　A. but B. besides C. while D. however

 A: Why did you go back to the shop? B: I left my friends ______ here.

　　A. to wait B. waiting C. wait D. waited

The pictures I took in Dalian ______ me of the time when I stayed there.

　　A. remembers B. tells C. says D. reminds

He has been ill for several weeks, so he has ______ in learning Maths.

　　A. many difficulties B. some difficulty C. a lot of troubles D. a trouble

Modest men are never ______ of the progress they have made.

　　A . proud B. afraid C. certain D. thinki ng

Digital cameras are becoming more and more popular, but some still __ too much.

　　A. pay B. spend C. take D. cost

The dinner didn’t start ______ all the friends arrived.

　　A. when B. while C. until D. whether