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
推荐题目
What do you do when it _____? --- I often stay at home and read books.
#40532
A
raining
B
rain
C
rains
D
is rains
The number of foreign students attending Chinese universities ________ rising steadily since1990.
#37896
A
is
B
are
C
has been
D
have been
