American women usually identify their best friend as someone________they can talk frequently．

A．who

B．as

C．about which

D．with whom

It shames me to say it, but I told a lie when ________ at the meeting by my boss．

A．questioning

B．having questioned

C．questioned

D．to be questioned

Can you doublt ________ he will win?

A．whether

B．if

C．that

D．when

－Isn't that Ann's husband over there?

－No, it ________ be him－I'm sure he doesn't wear glasses．

A．can't

B．must not

C．won't

D．may not

Doing morning exercises is certainly good for the old man, but it remains ________ whether he will enjoy it．

A．to see

B．to be seen

C．seeing

D．seen

The first text book，________ for teaching English as a foreign language，came out in the 16th century．

A．having written

B．to be written

C．being written

D．written

I’m busy now．Please don’t stand ________．

A．on the way

B．by my way

C．in a way

D．in my way

We won’t give up ________ we should fail twenty times．

A．even if

B．since

C．whether

D．until

－Why has English changed over time?

－That is ________ all languages change when cultures communicate with one another．

A．because

B．why

C．how

D．for which

However，even on TV and the radio you will hear differences in the way ________ people speak．(Which of the following is wrong?)

A．that

B．in which

C．/

D．how