Question

【题目】We all know that learning a foreign language time and effort.

A. reducesB. requiresC. removesD. repeats

Answer 1

【答案】B

【解析】

句意：我们都知道学习一门外语需要时间和努力。考查动词辨析。A. reduces减少；B. requires要求；C. removes移开；D. repeats重复。time and effort时间和努力；根据句意语境，可知ACD三项意思都不合句意，故选B。