Viết lại câu sao cho nghĩa không thay đổi
1. Look at the time! We ought to be in bed.
=> It's time we
2. "I'm not frightened," he said; in fact he was terrified.
=> He pretened not
3. If you aren't going to the party, I won't go.
=> Unless
4. Why didn't you tell me about this yesterday?
=> You should
5. I haven't seen them for about a year.
=> It's