1. You can’t visit the USA unless you have a visa.
=> If you………………………………………………………..
2. “ Can I borrow your typewriter, Janet”? asked Peter.
=> Peter asked if……………………………………………………………..
3. She started working as a secretary five years ago.
=> She has……………………………………………………………………
4. She knows a lot more about it than I do.
=> I don’t know…………………………………………………………………….