When I try to find _______ that prevents so many people from taking part in the program,it seems to me that there are two main causes.
While you were out, you should keep your doors and windows __________.
Not recognizing me at first,__________.
-It's too cold now. Would you mind my __________ the window? -__________. Go ahead.
-How do you find Summer Shoes 2012 ? -__________! I think every lady will love it.
We watched __________ when he cleaned and repaired the laptop computer.