Some experts thought that the standards of education __________ these years in China.

You should ________ your son. He works harder than before.—Thanks, I will.

Could you write me your new e-mail address—________.

What can I do for you, Sir?—It is not you waiters but ____ is in charge of the restaurant ___ I want to talk to

The members of the board are discussing the problem right now; it will _____ have been solved by the end of next week