1. I have bought a laptop, but I haven't used it.
2. I have written a log, but I haven't uploaded any photos to it.
3. We started the game half an hour ago, but we haven't finished it.
4. My dad have been going to London, but he hasn't seen the Big Ben.
5. I have read my English book, but I haven't done my homework yet.
6. They have had lunch, but they haven't had dinner.
7. I have downloaded some songs, but I haven't listened to them.
CHO MK 5* VÀ CTLHN NHÉ