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
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_____ I am concerned, Peru is well worth a visit. 
#31281
A
Even if
B
In my opinion that
C
As is known that
D
As far as
You may keep the book for one more week_____ no one else needs it.
#31966
A
provided that
B
so that
C
in order that
D
in case
Do you think the reason _______ he gave is believable?
#33120
A
which
B
why
C
what
D
to which