I. Dùng dạng đúng của động từ trong ngoặc đơn.
1. Nam and Ba often (play) .......................... chess in their free time.
2. Hoa (have) ............................... many books in English.
3. What (you/do) ....................... at recess tomorrow?-I don't know. Perhaps I (borrow) ..................... an English book from the library.
4. Why (your friends/like) ................................ your house?
5. After school, Ba often (ride) .................................... his bike home.
6. We (not call) .......................... our friends tomorrow.
7. (you/be) ................................. here with us next Sunday?