I was doing my homework _______ mother was cooking.
#56360
A
when
B
while
C
as
D
what time
推荐题目
Miss Zhao is very helpful. She often helps us ____we are in trouble.
#58468
A
whether
B
although
C
whenever
D
however
Learning to write is learning to think. You don’t know things clearly _______ you can write them down.
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A
unless
B
if
C
since
D
whether
We never doubt __________Bill is honest. Because he never tell lies.
#56912
A
that
B
if
C
whether
D
that if