—Be quiet, Mr. Smith is coming.—Don’t worry. It ___ be him. Mr. Smith is much taller.A. mustn’t B. must C. can’t
---Can you come on Monday or Tuesday, John? ---I’m afraid ____ day is possible. I will be very busy on those two days.
----What do you think of the book? ----I don’t think it’s ______ useful book.
---How about going to the park together? ---________
—Excuse me, ____ is it from our school to Huanglong Stadium? —About ____ drive.
––David has made much progress in Chinese this year. ––____. He has reached a level which is quite good.