22.
(A) return
(B) returned
(C) returning
(D) has returned

答案：登入後查看
統計： A(21), B(27), C(350), D(4), E(0) #1280295

詳解 (共 1 筆)

#4877308

還原成關係子句：it moves to the branches of the vein which return to the heart

減化：it moves to the branches of the vein returning to the heart

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