— What do you think of the book?— Oh, excellent. It is worth ________ a second time.
---May I surf the Internet now? ---No,______ you have finished doing the dishes.
The young man used to _______ to work,but he is used to _______to work now.
—I hear that Huang Gang made an English speech contest last week. ---____________and ___________.
Do you think _________ should be allowed to drive?
Tom, your hair is too long. Would you please get your hair _______.