I. Dùng từ gợi ý viết thành câu
1 How long/ Nga and Mai/ be/ school
=>How long are Nga and Mai at school?
2 They/ be/ school/ 3 hours
=>They are at school in 3 hours
3 She/ be not/ home/ up to now
=>she hasn't been at home up to now
4 They/ be not/ ill/ 2 days
=>they weren't ill 2 days ago
5 Her brother/ be not/ student/ since 2015
=>her brother hasn't been a student since 2015
6 Her brother/ been/ Ha Noi/ Junuary
=>her brother has been to Ha Noi since january