It"s not easy (walk适当形式) to school

问题描述:

It"s not easy (walk适当形式) to school
Now many people(exercise适当形式)in the park

第一题:正确答案:It"s not easy (to walk) to school.翻译:走回学校很不容易.说明:这里实际上用了一个以it做形式主语的动词不定式结构,即:It+is +adj.+to do sth,句子的真正主语是后面的动词不定式结构,考虑到...