18. Unlike competitive
(A)running, race walkers must
(B)always keep some portion of
(C)their feet
(D)in contact with the ground.

答案：登入後查看
統計： A(8), B(10), C(6), D(16), E(0) #810051

詳解 (共 2 筆)

#4329503

(A) running-->runners

剛好有人討論這題：

"The important principle here is parallelism. The main part of the sentence discusses walkers. They are compared with something. What are they compared with: runners, or running? One can compare walkers with runners, because those are parallel concepts. One cannot compare walkers with running or with a race. It is not logical to do that."

Source: https://forum.wordreference.com/threads/runners-running.2906998/


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#1323626
(A) running-->run

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