Make questions for the underlined part:
1.There are( 40) students in my classroom.
2.My family usually goes to Da Lat (on summer vacation).
3.Her children often go to the club (by bike).
4.My favourite singer is 9 David Archuleta).
5.The show lasts ( tow hours and a half).
Phần đóng ngoặc là phần gạch chân ấy ạ