Điền từ để hỏi : 1, _________ have you give up smoking ? for about two years 2, _________ place is more densely populated - Ha Noi or HCM city? 3, _________ broken Jane's favorite vase? Her brother did it 4, _________ does Mr.brown do ? He's a reseacher 5, _________ ethnic groups are there in your country? 6,__________ is your grandmother ? She's ninety years old 7,___________ does your English teacher look like ? She's young and pretty 8,_________ water should me drink every day ? 9, _________ did you use to go to school ? I used to go on foot 10, ________ is it from here to the nearest police station ? 11, ________ songs is this singer performing ? He is performing Trinh Cong Son's songs 12, ________ was Ms Ann born ? She was born in a small village 13,_________ did you have for breakfast ?- Bread and eggs 14,________ didn't you invite Jim to the senior prom ? 15, ________ do they meet each other ?- Almost every day ( giúp mềnh zới mấy pạn nha ) :))