giúp em vs ạ
em cảm ơn mn trước
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13. David left the party before we arrived there.
When
14. I have only recently started wearing glasses.
I didnt
15. We haven't gone to a concert for ages.
It's
16. Sarah hasn't seen her friends since she left for the United States.
Sarah last
17.1 have never stayed in such an expensive hotel before.
This is