Exercise 2: Viết lại các câu sau đây sao cho nghĩa không đổi.
1. Perhaps Susan knows the address. (may)
=> Susan______________________________________________
2. It’s possible that Joanna didn’t receive my message. (might)
=> Joanna ______________________________________________
3. The report must be on my desk tomorrow. (has)
=> The report ______________________________________________
4. I guess he came yesterday ( might)
=> He______________________________________________
5. It was not necessary for Nancy to clean the flat. (didn’t)
=> Nancy______________________________________________
6. She doesn’t have to go to school today. ( not)
=> She ______________________________________________