题目内容：

1、on july 16用什么提问
2、a friend of mine 用什么提问
3、that‘s very kind of you to help me（ 保持原意）
you are （ ）（ ）help me
4、to arrive on time is very important in china（保持
（ ）（ ）to arrive on time in china

优质解答

when

who

You are kindful to help me.

It's important to arrive on time in china