(______) setting off early, we avoided the terrible traffic jams during the rush hours. 通过提前启程，我们避免了高峰时段的严重交通拥堵。
A.On B.By C.With D.For正确答案B
(______) setting off early, we avoided the terrible traffic jams during the rush hours. 通过提前启程，我们避免了高峰时段的严重交通拥堵。
A.On B.By C.With D.For正确答案B
