He pretended not to care but that remark _________ his real opinion on the matter.

Please lock the door;______, bring the umbrella to me. It looks as if it is going to rain.

Success belongs to those who work hard. I firmly believe that, _____my own efforts, I can make it.

My father used _______in front of his house and he got used to _______like that.

Rather than _______on a crowded bus, he always prefers _______a bicycle.

We may think that kids know little about health. _________, they have a high health IQ.

Now I come here at the      of Mr.Smith to assist him finishing the work. 

His son is very naughty and has formed some bad habits.I think he should     .

Shortly after the book Uncle Tom's Cabin________, the Civil War of America________.

_______ I know the exam isn’t difficult, I shall not worry about it.