The boy was so tired that he fell asleep _____________ his mother could take off his clothes．
#30097
A
before
B
after
C
while
D
where
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I usually take something to read when I travel by train _____I feel bored．
#30819
A
as if
B
so that
C
in case
D
even though
You shouldn’t have failed the job interview. Why didn’t you do ___ the expert suggested?
#31688
A
if
B
when
C
as
D
because
It seemed only seconds ________ the boy finished washing his face.
#30993
A
the moment
B
since
C
after
D
before