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he girl sitting next to me on the plane was very nervous, for she            before.
#36660
A
hasn’t flown
B
hadn’t flown
C
didn’t fly
D
wasn’t flying
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Where ___ you ____?
#42408
A
do,come
B
do, from
C
are, come
D
are , ,from
What do you do when it _____? --- I often stay at home and read books.
#40532
A
raining
B
rain
C
rains
D
is rains
What _______ to her yesterday evening?
#38870
A
was happened
B
happened
C
happening
D
happen
Millie _________ a picture when Mr. Green came in.
#39146
A
draw
B
will draw
C
drew
D
was drawing
 The number of foreign students attending Chinese universities ________ rising steadily since1990. 
#37896
A
is
B
are
C
has been
D
have been