`1. `They were playing tennis at 10.30 yesterday morning.
- Thì QKTD: at 10.30 yesterday morning
`2.` Ann was doing homework at 5 o'clock this afternoon.
- Thì QKTD: at 5 o'clock this afternoon
`3.` My father was washing his car from five to six.
- Thì QKTD: from five to six
`4.` This time last yearwe lived in France.
- Thì QKD: this time last year
`5.` The student offered flowers to this visitors.
- Thì QKD
`6.` I cooked dinner half an hour ago.
- Thì QKD: ago
`7. ` She was working at the studio that time.
- Thì QKTD: that time
`8. ` What were you doing from 3 to 6 yasterday afternoon?
- Thì QKTD: from 3 to 6 yesterday afternoon
- Cấu trúc:
( + )S + was/were + V-ing + ...
( - ) S + wasn’t/weren’t + V-ing + ....
( ? ) Was/Were + S + V-ing + ...
- Cách dùng:
+ Diễn tả một hành động xảy ra trong 1 thời điểm đã đc xác định trong QK
+ Miêu tả một hành động đang xảy ra thi hành động khác chen vào