He'll never say a word about it ___ you have explained it to him.
#71667
A
once
B
before
C
on order that
D
so that
推荐题目
The argument remains extremely heated there are necessary conditions of existence such as water on the Mars.
#71649
A
that
B
whether
C
if
D
which
--- I can’t find Xiao Ping. Where did you see him this morning?--- In the reading room _________ he often studies in.
#69907
A
that
B
where
C
in which
D
the one
________ it rain tomorrow, we would have to put off the sports meeting.
#66947
A
Were
B
Would
C
Does
D
Should