Our school has developed a learning system ________ students can do a lot of teamwork．

A．that

B．when

C．which

D．where

When you feed horses, watch that one ________－it bites．

A．paticularly

B．actually

C．usually

D．naturally

For a man with career－ambition, there's no greater happiness than ________ of succeeding in one's career．

A．it

B．that

C．what

D．one

The material appears to be iron at ________ first sight because of its colour, but actually it is made of ________ wood．

A．/; /

B．the; the

C．the; /

D．/; the

Our suggestion was that the meeting ________ off till next month．

A．to put

B．should put

C．be putting

D．be put

Only when your identity has been checked ________．

A．you are allowed in

B．you will be allowed in

C．will you allow in

D．will you be allowed in

Mr．Green stood up in defence of the 16－year－old, saying that he was not the one ________．

A．blamed

B．blaming

C．to blame

D．to be blamed

There have been four sets of invaders of England．If you look around the British countryside you will find ________ of all these invaders．

A．evidence

B．conclusion

C．impression

D．section

The government has ________ a new economic policy．

A．put up

B．put forward

C．put off

D．put out

First John Snow marked on a map the exact places ________ all the dead people had lived．

A．that

B．where

C．which

D．why