---Is Jack on duty today?

　 ----It _______ be him. It’s his turn tomorrow.

　 A. mustn’t　　　　 B. won’t　　　　　 C. can’t　　　　 D. needn’t

In science fictions, aliens are _________(生物) from the outer world.

Between the two roads ____ a TV tower called "Skyscraper Tower".

A. stands　　　　　 B. standing　　　　　　 C. which stands　　　　　 D. stand

Smoking　　　　　 your health．

A．does harm to　　 B．do harm to　　 C．is harmful　　　 D．do good to

Over the past 20 years, the Internet helped change our world in _____way or another for the better.
A. any        B. one        C. every       D. either

Considering his health, his coach 　　　　　　 him retiring ahead of time.

　 A．suggests　　 B．a(chǎn)dvises　　 C．insists　　 D．requires

—Sorry, do you mind if I smoke here?

　 　—Yes,　 __________.　　　 .

A you could　 　　 B go ahead　　　 C I do　　 　　　　D my pleasure

The 18-storeyed building, when _____, will shut out the sun _____ up the rooms in my house.

A. completed; lighted      B. completing; lighting  　C. completing; lighted      D. completed; lighting

---- It is high time I _______ to school.I have to go now

　 ---- See you!

　 ---- See you!

A.had gone　 B.went　 C.would go　 D.should have gone

Most of the audience wondered what ider a man who’s deaf from birth can have ____ music.

A、with B、in C、of D、at