The warning we were given as children ________ an apple a day keeps the doctor away may，in fact，have a scientific explanation.
#67422
A
that
B
who
C
where
D
which
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The poor young man is ready to accept _______ help he can get.
#72796
A
whichever
B
however
C
whatever
D
whenever
--- Who should be responsible for the accident?--- The boss, not the workers. They just carried out the order _______.
#67788
A
as told
B
as are told
C
as telling
D
as they told
(2013·山东，26)Mark needs to learn Chinese________his company is opening a branch in Beijing.
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A
unless
B
until
C
although
D
since
Our teacher is always busy preparing lessons until 11 o’clock at night, _______we students have gone to sleep.
#72072
A
that time
B
by which time
C
by that time
D
which time