How soon How often How long之类的试题

1. how soon 指再过多久，多久以后，主要用来对表示将来的一段时间常用于将来时 。(常用in短语回答如in an hour, in two weeks 等)提问，
2.how long指多长时间，主要用来对一段时间(如three days, four weeks 等)提问

1.—___（How soon）__will you be away?—In a couple of weeks. A.What time B.How soon C.How often D.How long
2.—Xiao Wang,__（how long）__will it take to fly to Guangzhou?—Sorry,I don’t know A.how far B.how soonC.how many

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