we --- be careful when we'er walkung across the road there're too many cars nowa\ canb\ mayc\ mustd\ could说理由!

We must ___(be) careful. We must be careful.怎么改祈使句 We must___(be) careful with fire. We should____(be)careful.不要瞎写! So we must be careful when we use the Internet. be careful be careful! be careful be careful It's ___(ice).We must be careful. When a shark ______(appear),we should be careful we should be careful not to （养成）bad habits 求!七年级英语复习题答案There is a big _______ (swim) pool in our school.She lives on the ______ (nine) floor of the block.This blue bike is Mike’s and the red one is ______ (she)Mr. Smith teaches ______ (we) English.We must be careful wh We must be careful with strangers.（划线部分提问）---- ---- we be carefulwith? we have to be careful how we do this这句中 how we do this是什么成分? 有be bored in吗 We become()with his speaking 填bored还是careful我觉得是careful,be careful with是确定的 Wh must obey the traffic rules.We can not be h___ by car. We know that we have to be careful with our purses.