题目内容：

1:how soon 2:how often 3:how far 4:how fast 的相关用法
介绍详细点/有例句更好

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How soon 多快(还有多长时间):I'm going to graduate soon.我很快就要毕业了.How soon?多快(还有多长时间）?This June.这个六月.How often (多长时间（一次）):How often do you visit your grandparents?你多长时间...