Question

1.She went to the supermarket and_____what she needed ,she left for the trainstation,light-hearted.

答案 having bought
为什么加having 是因为动作有先后吗

Answer 1

是的，是因为动作有先后。having bought what she needed 在先，动身去火车站在后。

Answer 2

离开的时候已经买完了，用现在分词表示伴随的状态，用完成时态表示动作的先后

Answer 3

having bought what she needed是现在分词短语表示在她买完所需的东西之后，前往火车站。并不是went和bought并列。

Answer 4

就是，先买完，再离开。

Answer 5

bought
having bought 是不适合