4.Occasions are quite rare ______ I have the time to spend a day with the kids.
#74682
A
who
B
which
C
why
D
when
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Information has been put forward ________ more middle school graduates will be admitted into universities.
#73923
A
while
B
that
C
when
D
as
This outdoor training is an exercise , as we know, teenagers' confidence can be built.
#66966
A
which
B
what
C
that
D
where
______ difficulties we may face in our life, we should keep calm and take measures to get them over.
#68026
A
Whenever
B
Whatever
C
Whichever
D
However
I'm sorry you've been waiting so long, but it'll still be some time _______ Sundance gets back.
#68353
A
until
B
before
C
after
D
since