Question

【题目】He _____ to play ____ before he was 11 years old.

A. had learned, piano B. had learned, the piano

C. has learned, the piano D. learns, piano.

Answer 1

【答案】B

【解析】时间状语before he was 11 years old是过去时，主句的动作发生在这个时间之前，表示“过去的过去”，应当用过去完成时；piano是西洋乐器，与play连用时，前面应当加the。