IV. Find one mistake in each of the following sentences and correct it.
1. Frank has done his homework and then listened to music.
2. The children have put away their toys but they didn’t make their beds yet.
3. Jim learned a lot since he started the language course.
4. They haven’t seen each other since Septemper when they have met at Mary’s party.
5. Peter has bought a new MP3 player yesterday but I haven’t seen it yet.
Loga
Sinh Học lớp 12
