how long have you ___ there?---About three years.A.been B.gone to C.been in 为什么选A?
问题描述:
how long have you ___ there?---About three years.A.been B.gone to C.been in 为什么选A?
答
how long have you ___ there?---About three years.A.been B.gone to C.been in 为什么选A?