69. With the guide leading the way, the visitors were able to travel through the forest no

发布时间：2020-08-16 06:10:40


69. With the guide leading the way, the visitors were able to travel through the forest not by air but      foot.
A. by
B. on
C. in
D. with

网友回答

A. by
(答案→)B. on
C. in
D. with
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