It has been two years we left school.
#33242
A
since
B
when
C
before
D
as
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I was feeling left out in the new school Alice ,an easygoing girl from Canada ,came to stay with me．
#30187
A
if
B
once
C
when
D
unless
I was advised to arrange for insurance(保险) _______ I needed medical treatment.
#80102
A
nevertheless
B
although
C
in case
D
so that
When the elevator doors open, stand aside and let everyone out ________ you try to get in.
#31237
A
unless
B
although
C
until
D
before
Well, you can buy $20 tickets or 30 $ tickets, ______ you prefer．
#79736
A
which
B
whichever
C
whatever
D
what