She left Shanghai for Beijing last weekend.现在完成时态
问题描述：
She left Shanghai for Beijing last weekend.现在完成时态
答
只需去掉过去的特定时间 -last weekend.
改成的现在完成时为: She has left Shanghai for Beijing.
答
She has been away from Shanghai to Beijing since last weekend.
答
She left Shanghai for Beijing last weekend.（现在完成时态）
She has left Shanghai for Beijing.
她已经离开上海去北京了.
答
She has left Shanghai for Beijing since last weekend