一Why didn’t you try your best to get on the bus?一I tried to，but ______ I could，it started moving．
#32478
A
until
B
when
C
before
D
after
推荐题目
________we went to visit Professor Smith, he________his research work.
#31550
A
The first time; devoted to
B
Whenever; was concentrate on
C
For the first time; was busy with
D
Each time; was absorbed in
The famous scientist was going out _____ he found himself surrounded by lots of young people.
#34549
A
when
B
before
C
while
D
after
______I find someone______understands my dislike for the conventional driveway makes me eternally grateful．
#32380
A
What; that
B
When; who
C
Who; that
D
That; who
She’ll never forget her stay there she found her son who had gone missing two years before.
#32411
A
when
B
where
C
that
D
which