Question

【题目】He has kept in touch with us .

A. since a month B. for a month C. for a month ago D. in a month

Answer 1

【答案】B

【解析】句意：他和我们保持联系已有一个月了。A. since a month短语表达错误；B. for a month一个月，表一段时间，可以和现在完成时态连用；C. for a month ago短语表达错误；D. in a month一个月内。故选：B。