Đặt câu hỏi cho phần in đậm:
1. They are playing catch in the school yard.
2. Liz will send these letters to her friends.
3. She went to the doctor because she was sick.
4. They returned to America two weeks ago.
5. Her date of birth is on August 21st.
6. The school library has about two thousand books.
7. My parents have lunch at 11.30
8. He goes to the library three times a week.
9. They will fly to London next month.
10. She will be fourteen on her next birthday.