đặt câu hỏi cho phần gạch chân ----- Nội dung dịch tự động từ ảnh ----- 1. There are 40 students in my classroom. 2. My brother is studying in his bedroom. 3. My family usually goes to Da Lat on summer vacation. 4. Her children often go to the club by bike. 5. My favorite singer is David Archuleta. 6. The show lasts two hours and a half. 7. Marie was at home last morning. 8. I will leave on Sunday. 9. Don't swallow chewing gum because it is bad for your stomach. 10. I am playing badminton with my closest friend.