Tìm lỗi sai và sửa lỗi
1. We saw an UFO at about ten o’ clock last night.
2. It’s a long time since I have visited the capital.
3. We think that Mother’s Day should celebrate nationwide.
4. Thank you for inviting me to the party. I wish I can but I can’t.
1/at about -> around ; an UFO -> a UFO
2/have visited -> visited ; ‘s -> has been
3/should celebrate -> should be celebrated
4/can -> could
#Sa
$#Pi$
1. at about → around, saw → were seeing
2. have visited → visited
3. should celebrate → should be celebrated
4. can → could