Miss Zhao is very helpful. She often helps us ____we are in trouble.
#58468
A
whether
B
although
C
whenever
D
however
推荐题目
This problem is ______ difficult __________.
#57835
A
so; that few of us can do
B
so; that few of us can do it
C
too; for anyone of us to do
D
too; for anyone of us to do it
My sister ______ go to bed _______ my mother came back last night.
#55654
A
not until
B
doesn't; until
C
didn't; until
D
aren't; until