问题描述：
将下列句子改it作形式主语 1.playing in the snow is fun 2.the
将下列句子改it作形式主语
1.playing in the snow is fun
2.the work.is important and we must finish it on time
3.my mother doesn't allow me to go out in
the evening because it is dangerous
4.swimming in the sea is exciting
5.the park is nice and i like to go fishing in it.
将下列句子改it作形式主语
1.playing in the snow is fun
2.the work.is important and we must finish it on time
3.my mother doesn't allow me to go out in
the evening because it is dangerous
4.swimming in the sea is exciting
5.the park is nice and i like to go fishing in it.
问题解答：
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