(2013·高考新课标全国卷Ⅰ)Try not to cough more than you can________since it may cause problems to your lungs.

A．check　　　　　B．allow

C．stop? D．help

(2013·高考新课标全国卷Ⅱ)Since nobody gave him any help，he________have done the research on his own.

A．can　　　　　　　B．must

C．would?? D．need

(2013·高考新课标全国卷Ⅰ)The sunlight is white and blinding，________hard?edged shadows on the ground.

A．being thrown　　　B．throwing

C．to throw? D．to be thrown

(2013·高考新课标全国卷Ⅰ)“You can’t judge a book by its cover，”________．

A．as the saying goes old　　B．goes as the old saying

C．as the old saying goes? D．goes as old the saying

(2013·高考新课标全国卷Ⅱ)When I arrived，Bryan took me to see the house________I would be staying.

A．what? B．when

C．where? D．which