—What _______ the number of the students in your school?
—About two thousand. A number of them _______ from the countryside.
A. is; ,are B. is; is
C. are; is D. are; are
Hurry up! Once the concert starts, nobody _______ to enter the concert hall.
A. allows B. allowed
C. is allowed D. is allowing
Your dream will come true _______ you put your heart and into it.
A. if B. unless
C. although D. So
—Could you please have a walk with me?
—Sorry, I _______. I have something important to do now.
A. mustn’t B. needn’t
C. can’t D. may not
—Why are you in such a hurry, John?
—There _______ an NBA basketball game in ten minutes.
A. will be B. was
C. would be D. has been
—_______ will your father come back from Beijing?
—In two days.
A. How often B. How long
C. How far D. How soon
