she has been swimming since 2004.划线部分提问(since2004是划线部分)
问题描述:
she has been swimming since 2004.划线部分提问(since2004是划线部分)
答
How long has she been swimming?
she has been swimming since 2004.划线部分提问(since2004是划线部分)
How long has she been swimming?