________ is often the case, we have worked out the production plan．

A．Which

B．When

C．What

D．As

The ________ house smells as if it hasn't been lived in for years．

A．little white wooden

B．little wooden white

C．white wooden little

D．wooden white little

The old man, ________ abroad for twenty years, is on the way back to his motherland．

A．to work

B．working

C．to have worked

D．having worked

For quite ________ students, their teacher's advice is more important than ________ of their parents'．

A．few; one

B．a few; that

C．a little; some

D．a lot; many

It was ________ great shock to the world that two airplanes crashed into ________ World Trade Centre in New York on Sept．11．

A．a; /

B．the; the

C．a; the

D．/; the

It was the training ________ he had at school ________ made him good jumper．

A．what; what

B．that; that

C．what; that

D．that; had

Why didn't you tell me there was no meeting today? I ________ all the way here ________ the heavy snow．

A．needn't have driven; through

B．can't have driven; across

C．mustn't have driven; through

D．shouldn't have driven; cross

Never ________ forget the days when ________ together with you．

A．shall I; I lived

B．shall I; did I live

C．I shall; I lived

D．I shall; did I live

The two old sisters, ________ so long, held each other and burst into tears．

A．being separated

B．having been separated

C．having separated

D．had been separated

It's impossible for all the people to get jobs because ________ of them are not fit for them．

A．none

B．all

C．not all

D．every one