----- Nội dung dịch tự động từ ảnh -----
I.choose the best answer.
1.I (met/was meeting) a friend while I (did/was doing) the shopping.
2.1 (turned/was turning) round and (saw/was seeing) Paula.
3.She (wore/was wearing) a bright red coat when I saw her.
4.1 (paid/was paying) for my things when I (heard/was hearing) call my name.
5.We(left/was leaving) the cafe and (said/was saying) goodbye.
6.this time last month we (took/were taking) the final test.
7. While we (had/were haying) a drink, a waiter (dropped/was dropping) a pile of plates.
8. When I (came/was coming), he (read/was reading) books.