—Mary,I don’t know ____ you can come tomorrow morning.—No problem! I’ll be here _____I’m free then.
#55784
A
if;if
B
if; whether
C
whether;till
D
whether;until
推荐题目
We never doubt __________Bill is honest. Because he never tell lies.
#56912
A
that
B
if
C
whether
D
that if
It’s best to travel with someone who can translate things for you ________ you speak French yourself.
#56933
A
if
B
until
C
unless
D
when
Kelly Clarkson is so popular among young people _____ her beautiful voice.
#55865
A
because
B
because of
C
instead
D
instead of
Miss Zhao is very helpful. She often helps us ____we are in trouble.
#58468
A
whether
B
although
C
whenever
D
however