------You ran into Mr. Li! How did that happen? ------Well, _______ of us was looking where we were going. We came around the corner at the same time.
--- Isn’t that Jessica’s brother over there? --- No, it _______ be him. I’m sure he doesn’t wear glasses. A. can’t B. must not C won’t D may not
She was fired by the boss because she failed to ___________ for work on Monday. A. turn up B. turn down C. turn on D turn out
Great changes _________ in China in the last two decades.
We must set a limit __________ the expense of the trip.
He’s thinned down a lot since he ___________ a diet.