I insisted he______ back the wallet to the lady, but he insisted he______it.

(2013·高考福建卷)Michelle found a job as a high school teacher which ________ spending quite a lot of time with students.

(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.

________，everybody agrees the suggestion that the prize should be sent out to the hero by mayor.

—You can't imagine ________ fantastic fun online chatting is.
—Really？But it may cause a lot of trouble sometimes.

(2013·山东师大附中一模)To the great disappointment of the poor workers, a great part of their wages were ________ by the boss for no good reason.

We had no one ______ us, for we could deal with the case all by ourselves.
A. help            B. to help           C. helped         D, helps

Try not to cough more than you can ______ since it may cause problems to your lungs.

Remember to ________ a good state of mind even if you should fail plenty of times．

There are 5 star fathers in the TV program Dad, Where are we going, the Olympic Champion Tian liang ________.