单项选择题A.howB.whyC.whatD.when
单项选择题A.A boat dock.B.A weather station.C.An airport.D.A bank.
单项选择题A.affectedB.affectsC.effectD.affecting
单项选择题A.onB.inC.OverD.for
单项选择题A.One weekend.B.Five days.C.Ten days.D.Two weeks.