She didn’t know__________she could express her ideas clearly when she was invited to speak at the meeting.
#55367
A
what
B
why
C
how
D
whether
推荐题目
They will not start the work _______ their teacher comes back.
#58093
A
while
B
until
C
as soon as
D
if
We never doubt __________Bill is honest. Because he never tell lies.
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A
that
B
if
C
whether
D
that if
－This dress was last year’s style.－I think it still looks perfect____ it has gone out this year.
#57955
A
so that
B
even though
C
as if
D
ever since