Mr. Bush is on time for everything. How ____ it be that he was late for the important meeting?

derstandings ________ from lack of social communication, unless ________ properly, may lead to serious problems.

be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”

request of some English learners, he has published a lot of books, one of _______ is about English idioms.

The Olympic champions_____ all the audience excited at 2004 Olympic Games.