Bài 3. Hoàn thành các câu sau sử dụng động từ trong ngoặc chia ở thì hiện tại tiếp diễn 1. My grandfather __________________ (buy) some fruits at the supermarket. 2. Hannah __________________ (not study) French in the library. She’s at home with her classmates. 3. __________________ (she, run) in the park? 4. My dog __________________ (eat) now. 5. What __________________ (you, wait) for? 6. Their students __________________ (not try) hard enough in the competition. 7. All of Jack’s friends __________________ (have) fun at the concert right now. 8. My children __________________ (travel) around Asia now. 9. My little brother __________________ (drink) milk. 10. Listen! Our teacher __________________ (speak