—Is that Dec.21,2012 is the end of the world true?—Definitely not, but ______ must be paid to global climate change.
We _______ in the office.
I’ll help you _______ I don’t sleep for night.
I wonder how much ________.
The _________ look on his face suggested that what the monitor said was ___________.
When the New Year comes, children often ______ and get some gifts.