Đề bài : Viết lại câu sao cho nghĩa không đổi

`9` You needn't to do all this work

`-` It is / was + not + necessary + for + O + to - V 

`=` S + don't/ doesn't / didn't + need to / have to + V + O 

`10` John can't be the thief 

`-` can't + V : không thể là gì được 

`11`  Susan may know the address 

`-` Perharp `=` may : có lẽ, có thể 

`12`  The report has to be on my desk tomorrow 

`-` must + V `=` have/ has to + V : phải 

`13`  I was able to finish all my work 

`-` mange to - V `=` be able to - V: xoay sở, có thể làm gì đó 

`14` Nancy didn't need to clean the flat 

`-` It is / was + not + necessary + for + O + to - V 

`=` S + don't/ doesn't / didn't + need to / have to + V +O 

`15` You have better sit down sit down 

`-` have better+ V : nên làm việc gì đó