LÀM BÀI: EXERCISE 31.3
Vui lòng đăng nhập và đăng ký (miễn phí) khoá học (EG1) English Grammar 1 để nộp bài và xem kết quả.
Complete the sentences. Use mustn't or don't need to + these verbs:
1.
I home yet. I can stay a little longer.
2.
We have a lot of time. We .
3.
Keep these papers in a safe place. You them.
4.
I'm not ready yet, but you for me. You can go now and I'll come later.
5.
We to turn off the lights before we leave.
6.
I must contact David, but I him - I can send him an email.
