1 . Who is to ____________ (责备) for the air pollution nowadays?(根据汉语提示单词拼写)

2 . Immediate action should be taken to b_______（改善）the environment. (根据中英文提示单词拼写)

3 . Parents and children should communicate more to______ (缩小) the gap between them so that they can understand each other better(根据汉语意思单词拼写)

4 . ________, you need to give all you have and try your best.

A．Being a winner	B．To be a winner
C．Be a winner	D．Having been a winner

5 . Mary seems ________ the bad news, for she looks nice and happy.

A．not to have learned	B．not to be hearing
C．not having learned	D．not to be heard

6 . With just four years _______, the Brazil Olympic organizers have promised to deliver an equally inspirational ceremony.

A．gone

B．to go

C．going

D．go

7 . I have no one ____ me, for I can deal with it all by myself.

A．to help

B．to have helped

C．help

D．helped

8 . —Well, a soup, a salad, and anything ____, sir?
—An apple pie, please.

A．follows

B．to follow

C．following

D．followed

9 . Either you or one of your students___to attend the meeting__ tomorrow.

A．are; to be held

B．is；being held

C．is; to be held

D．are；having held

10 . Measures must be taken to prevent pollution ____ happily.

A．from we live	B．for us to live
C．us living	D．from our living