Question

【题目】—They speak perfect English. How long have they learnt it?

—_______ they were seven years old.

A. Since B. When C. After D. Until

Answer 1

【答案】A

【解析】

试题分析：句意：-他们说英语说得非常的好。他们学习它多长时间了？-自从他们7岁的时候。A. Since自从，后接一般过去时，主句用现在完成时；B. When当…时候C. After 当……之后；D. Until直到……;故选A