Question

选择题:it is important()us()careful when we cross t

e rode.

Answer 1

选择题:it is important()us()careful when we cross the rode.

是单词填空吧。
应该是：
It is important (for) us (to be) careful when we cross the rode.
意思是：对我们来说过马路要小心，这很重要。
It is important for us to do sth是常见固定句型。