22.(2013江苏无锡，8)—Howlongdoesittaketogettotheairport?一Fortyminutes.Butit’sfoggytoday.I'mnotsurethehighwaywillbeclosedsoon.Lefssetoffearlier.A.whetherB.whenC.howD.why
22.(2013 江苏无锡，8 ) —How long does it take to get to the airport?
一Forty minutes. But it’s foggy today .I'm not sure the highway will be closed soon.Lefs set off earlier.
A. whether B. when C. how D. why
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