Water, which seems to be so simple and common, is ________ makes life possible．

A．that

B．which

C．where

D．what

The press conference, originally due to be held last week, was finally ________ because of the sudden war in the country．

A．set off

B．broken off

C．worn off

D．called off

Clothing made of fibers has certain advantages over ________ made of natural fibers like cotton, wool or silk．

A．this

B．one

C．that

D．what

Some women ________ a good salary in a job instead of staying at home, but they decided not to work for the sake of the family．

A．must make

B．should have made

C．would make

D．could have made

I’d rather you ________ make any comment on the issue for the time being．

A．don’t

B．wouldn’t

C．didn’t

D．shouldn’t

They conclude that _________ a planet only approximately like their own, life is almost certain to start．

A．to give

B．to be given

C．given

D．give

－It is a long time ________ I saw you last．

－Yes．And it will be a time ________ we see each other again．

A．when; when

B．since; before

C．before; since

D．when; before

The old couple decided to ________ a boy and a girl though they had three children of their own．

A．adapt

B．bring

C．receive

D．adopt

Hello．You ________ 68442936．I’m sorry I’m unable to answer your call right now．

A．reached

B．are reaching

C．have reached

D．had reached

－What about ________ supper yesterday?

－Well, ________ most delicious one indeed．

A．不填；the

B．不填；a

C．the; the

D．the; a