49. John fell asleep _D__ he was listening to the music.
A. after
B. before
C. while
D. as soon as
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The book was so interesting that he had read it for three hours __D__ he realized it.
A. unless
B. if
C. after
D. before
—How far is it from Tianjin to Changsha? —It is a _A_ flight from Tianjin to Changsha.
A. 2hourlong
B. 2hourslong
C. 2 hours' long
D. 2 hour long
The movie is__ wonderful __B__I want to see it again.
A. too;to
B. so;that
C. as;as
D. so;as
—Mom,I'm afraid I can't win the competition. —Believe in yourself,my boy,and tell yourself__ B _.
A. to give up
B. not to give up
C. to give away
D. not to give away