—Of course. You ________ never be careful enough with that.

A. must B. can

C. may D. should

A. abstract B. stable

C. rigid D. acute

【题目】The British people are proud of hosting the 30th Olympic Games successfully ________in London in 2012.
A.hold
B.holding
C.held
D.to be held

—Oh, she . We have already put it off.

A. mustn’t B. needn’t

C. shouldn’t D. can’t

—Sorry, I don’t know, but I’ll go and ________.

A. find outB. take outC. figure out D. watch out

A. Not being rid ofB. Not ridding of

C. Not rid ofD. Not having rid of

【题目】the scenery, Jiuzhaigou is the best place to visit.
A.In need of
B.In place of
C.In terms of
D.In favor of

A. or B. and

C. but D. so

【题目】Mr Howard, a man ________himself Dan came to see you this morning, and left you a message here.
A.called
B.calling
C.was called
D.calls

【题目】In recent years　_______ global warming is becoming ________ concern for people all over the world.
A.the; the
B.不填;a
C.不填;不填
D.the ;不填