When the elevator doors open, stand aside and let everyone out ________ you try to get in.
#31237
A
unless
B
although
C
until
D
before
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He seems too tired today, and I wonder _________ he got a good sleep last night.
#30205
A
when
B
that
C
if
D
where
—What should we pay more attention to if we go north in winter, Mum?—Nothing much. Take warm clothes _____ the weather is cold.
#80608
A
as long as
B
now that
C
if
D
in case
He turns a deaf ear to his parents, _____ many times they have pointed out his weakness.
#34806
A
whatever
B
whichever
C
whenever
D
however
You can’t complain of being lonely you don’t make any effort to meet people．
#33135
A
until
B
when
C
once
D
though