I failed in final examination last term and only then ________ the importance of studies．

A．I realized

B．had I realized

C．I had realized

D．did I realize

If no one ________ the phone at home, ring me at work．

A．returns

B．replies

C．answers

D．receives

________ by keeping down costs will Power-Data hold its advantage over other companies．

A．Only

B．Just

C．Still

D．Yet

Great changes have taken place in that school．It is no longer ________ it was 20 years ago, ________ it was so poorly equipped．

A．what; when

B．that; which

C．what; which

D．which; that

There was ________ time ________ I hated to go to school．

A．a; that

B．a; when

C．the; that

D．the; when

－How are you today?

－Oh, I ________ as ill as I do now for a very long time．

A．didn't feel

B．wasn't feeling

C．don't feel

D．haven't felt

The man ________ is a friend of my father's．

A．you just talked to

B．whom you just talked to him

C．who you just talked to him

D．which you just talked to

Is this factory ________ you visited last Sunday?

A．which

B．the one

C．that

D．where

－You're always working．Come on, let's go shopping．

－________ you ever want to do is go shopping．

A．Anything

B．Something

C．All

D．That

Who is the man ________ left the room a moment ago?

A．who

B．that

C．who had

D．whom