题目内容：

be carefully 和 be careful怎么用?When you cross the road,you must____ ____(care).
When you cross the road,you must____ ____(care).
Don't be late for class=_____________________.
Don't come to class late.还是?Don't come class late.

优质解答

When you cross the road,you must be careful.be动词后面加的是形容词或者名词Don't come to class late.come 当“来,来到”讲,是不及物动词.&nb...