By the year 2015, all of China's museums will be free to enter. We_______visit anymuseum without paying.A. can b. need C. must D. should
Parents often tell their children not to talk to________.
Five ________ dollars is_________ money.
How ________ time do you spend on your hobby?
—The little girl’s bedroom is very clean. —Yes. It’s much ________ than her ________.
It is________ now and there are some________ in the sky.