和訳して下さい。
1. They have already finished their dinner.
2. He has just cooked his lunch.
3. Have they started preparing for his birthday party yet?
4. I have already finished writing letters to my friends.
5. Have you listened to this new song?
6. Has he bought his new German textbook yet? Yes, he has already bought
it.
7. She has already watched the video.
8. Have you started cooking breakfast yet? Yes, I have.
9. Sadly, he still hasn’t finished his homework. Today is August 31st.
10. A friend of mine gave me a book 2 years ago. I haven’t finished reading
it yet.