Never stand up ________ you are asked to.
#58222
A
if
B
since
C
unless
D
when
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—Every day, my mother tries to spare some time to chat with me, she is very tired after a whole day’s hard work.—You are lucky to have such a great mum!
#56548
A
unless
B
whether
C
although
D
until
Frank often wears a mask ________he can keep fit in the foggy and hazy (霾) weather.
#55993
A
only if
B
until
C
so that
D
even though
_____ the waiter didn’t understand what the old lady was saying , he knew what she wanted.
#55689
A
Unless
B
Because of
C
Even though
D
Because