问题描述：
请帮我看看问题补充中的英语题目,为什么要选这个答案?
（A）1._______important advice they have just told us!
A.What B.What an C.How D.How an
2.He was very __impatient__with students who could not follow him.(patient)
3.It was an __unforgettable___ experience.(forget)
4.she's very ill and i'm afraid she's _dying__.(die)
5.she gave me some advice about how to eat more __healthily__.(health)
6.Susan will come back ____in ten minutes_____.(对划线部分提问）
___how___ ___soon____will Susan come back?
（A）1._______important advice they have just told us!
A.What B.What an C.How D.How an
2.He was very __impatient__with students who could not follow him.(patient)
3.It was an __unforgettable___ experience.(forget)
4.she's very ill and i'm afraid she's _dying__.(die)
5.she gave me some advice about how to eat more __healthily__.(health)
6.Susan will come back ____in ten minutes_____.(对划线部分提问）
___how___ ___soon____will Susan come back?
问题解答：
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