单项选择题
A.dropped in B.dropped off C.dropped out D.dropped down
A.flowing B.floating C.drifting D.sailing
A.turning B.setting C.driving D.putting
A.of B.for C.to D.with
A.enlightening B.confusing C.frustrating D.delighting
A.if B.wherever C.so that D.whereas
A.If you compare B.Compare them C.When compared D.A comparison
A.to consider B.which considers C.considers D.the consideration of
A.assure B.secure C.ensure D.issue
A.on the contrary B.or rather C.or else D.as for
A.In spite of B.Butf or C.Because of D.As for