We were about to leave the classroom _____ it began to rain.
#94729
A
while
B
when
C
as
D
before
推荐题目
Parents and teachers should help teenagers control their use of computer games ______be controlled by themselves.
#93319
A
other than
B
better then
C
rather than
D
more than
Many countries, for example, Mexico and Japan, _____a lot of earthquakes.
#95026
A
have
B
having
C
to have
D
having had
When he knocked at the door, my mother was busy ____ supper.
#94849
A
preparing for
B
in preparing
C
to prepare for
D
to prepare
She didn’t have enough money a present for her husband.
#94604
A
with which to buy
B
with that she bought
C
which she could buy
D
with buying
—— How did you pass the challenging test?—— It was a long time I found a series of suitable methods.
#92182
A
when
B
until
C
since
D
before