It’s going to be some time _____ he sees his father again, _____ business has just been started in Switzerland．
#32577
A
after; who
B
before; whose
C
when; whose
D
since; who
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___________Mrs Smith worked day and night, he found it difficult to make enough money to support such a large family.
#31433
A
Since
B
If
C
Once
D
Although
—Dad, I've finished my assignment.—Good，and ________you play or watch TV, you mustn't disturb me.
#29979
A
whenever
B
whether
C
whatever
D
no matter
I had no idea of the exact address of Xinhua High School ________I was outside its front gate.
#30227
A
when
B
after
C
until
D
because
They are putting too much carbon dioxide into the atmosphere, ______ prevents heat from escaping from the earth into space.
#31962
A
what
B
that
C
which
D
who
It is so wet there _____ the trees are extremely tall, some measuring over 90 meters.
#31961
A
what
B
which
C
that
D
why