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When Mary saw _____ piles of plastic in the bin, _____ strong sense of responsibility made her stick to her recycling work．

A．不填；不填       B．不填; a           C．the ; a            D．the; the

 ----What should I wear for the party, darling?

----      ．We're already late!

A．Come on!         B．Cheer up!         C．It's a long story．    D．Don't mention it．

In order to remove poverty, the World Bank has switched its ____ to providing assistance to developing countries.

A．passion           B．process           C．focus             D．struggle

--- Have you heard that Jenny, along with her classmates,        to Harbin for the winter vacation?

--- Really? No wonder I haven’t seen her these days.

A．had gone          B．have been         C．has gone          D．have gone

 ----Do you have any idea why Mark is leaving?

---- No. In fact, everyone is ________about it．

A．doubtful          B．curious           C．enthusiastic        D．a(chǎn)nnoyed

I will never understand how it ______ that you failed in the examination for you are such a good student.

A．came about        B．brought in         C．stayed up         D．ended up

---- Occasions are rare _____ I can spend a day with my daughter.

---- You should spare some time to accompany her.

A．when            B．where            C．which            D．that

 One of the requirements for the experiment is that the material _____ to its burning temperature．

A．is heated          B．will be heated      C．be heated         D．would be heated

Young people seem to have no time to spend with other people around them ______ giving so much attention to their own world.

A．in spite of         B．regardless of       C．due to            D．a(chǎn)ccording to

----Mary broke up with me!

----You ______ have forgotten about the Valentine's Day．

A．shouldn't          B．couldn't           C．needn't           D．mustn't