It’s quite obvious that the aging population in China will cause____ heavy burden on _____ whole society in the future.

　　A. ／; a B. a; the C. the; a D. a; ／

-Are you pleased with what he has done??　-Not in the least. It couldn’t be ____.?

　 A. so bad 　 B. much better

　 C. any worse 　 D. the best

We all can’t help____________ (叹息) when we heard the death of GaoXiumin.

I shall never forget the day _________Shen Zhou V was launched,_________has a great effect on my life.

A.when;which　　　　 B.that;which　　　　 C.which;that　　　　 D.when;that

If I ___ you, I ___ worry.

A. were/ wouldn't B.was/ wouldn't C. been/ would have D. be/ would

He ______ the shop while the manager was away.

　 A. was left in charge of　　　　　 B. left in charge of

　 C. was left in the charge of　　　　 D. left in the charge of

How pleased the detective was _____ what his customer told him!

　 A. hearing 　 B. heard C. to hearing 　 D. to hear

There　　　　 be any difficulty about passing the road test since you have practised a lot in the driving school.?

A.mustn’t　 B.shan’t　　　　 C.shouldn’t　　 D.needn’t

Great attention must ____education , especially in ．the countryside．

　 A．be paid to developing　 　　 B．pay to develop ?

　 C．be paid to develop　　 D．pay to developing

—You are late again，Tom?

—Sorry，but I got________a heavy traffic jam.

A．caught in 　　　 B．taken in

C．put off 　　　　　　 D．held by