Bài 1 : tìm lỗi sai rồi sửa
1 Frank has done his homework and then listened to music
2 the children have put away their toys but they did not make their beds yet
3 Jim learned a lot since he started the language course
4 Helen has finished her lunch and she went out to play
5 They have not seen each other since September when they have met at Mary has party
6 Peter has bought a new MP3 player yesterday but I have not seen it yet
7 the hockey player hit his head on Friday and he was in hospital since then
Bạn tham khảo
1. has done => did
2. didn’t make => havent made
3. learned => has learned
4. has finished => finished
5. have not seen => have known, have met => were
6. has bought => bought
7. was => have been
@cho mình CTLHN + 5 sao ạ, tks!