When you read a book, you should make a mark ______ you have any question.
#68272
A
where
B
which
C
that
D
what
推荐题目
The poor girl       across the road       a car knocked her down.
#41276
A
walked; while
B
walked; since
C
was walking; until
D
was walking; when
Today the public is much concerned about the way _______ .
#74364
A
nature is being ruined
B
which nature is ruined
C
on which to ruin nature
D
of nature to be ruined