1.by mistake
2.according to
3.in this way
4.by accident
5.knock into
6.are used for
7.fell into
8.fall down
9.divided into
10.in the end
用方框内的短语的恰当形式填空,使句子通顺、完整.
1.by mistake
2.according to
3.in this way
4.by accident
5.knock into
6.are used for
7.fell into
8.fall down
9.divided into
10.in the end