Viết lại câu
1. You can't visit the United state if you don't have a visa
>unless you have a visa,you can't visit the United state
2. The children couldn't go swimming because it rained heavily yesterday
> Because of the heavy rain yesterday,the children couldn't go swimming
3. I isn't necessary for you to finish the housework by Saturday
> you don't need to finish the housework by Saturday
4. She started working as a secretary five years ago
She has worked as a secretary for five years
1, You can't visit the United state if you don't have a visa.
\(\rightarrow\) Unless you have a visa , you can't visit United state.
2, The children couldn't go swimming because it rained heavily yesterday.
\(\rightarrow\) Because of heavy rain yesterday , the children couldn't go sswimming .
3, It isn't necessary for you to finish the housework by Saturday.
\(\rightarrow\) You don't need to finish the housework by Saturday.
4, She started working as a secretary five years ago.
\(\rightarrow\) She has worked as a secretary for five years.
Viết lại câu
1. You can't visit the United state if you don't have a visa
=> Unless you have a visa,you can't visit the United state
2. The children couldn't go swimming because it rained heavily yesterday
> Because of the heavy rain yesterday,the children couldn't go swimming
3. I isn't necessary for you to finish the housework by Saturday
> you have to finish the housework by Sturday
4. She started working as a secretary five years ago
>She worked as a secretary five years ago
