Question

【题目】---How old is your little sister?

---She is just five months old. She was born August last year.

A. in B. on C. at D. for

Answer 1

【答案】A

【解析】句意：---你妹妹多大了？---她只有五个月。她出生在去年八月。考查介词。在较长的时间段用介词in，例如, in August（在八月），in 1989（在1989年）；因此选A项