Exercise 1: Rerwite the following sentences that keep the same meaning.
1. You should take the train instead of the bus.
-> If................................................ .................................................. ..................
2. I'm sure that someone forgot to lock the door.
--> Someone must.............................................. .................................................
3. They bought this house ten years ago.
--> They have.............................................. .................................................. .....
4. The course finished with a big party.
--> At the end............................................... .................................................. ....
5. We invited a pop star onto the chat show, but he didn't turn up.
--> The pop star.............................................. .................................................. ..
6. Although she said that she would come, I don't think she ever will.
—> Despite........................................... .................................................. ...........
7. The plane had hardly left the airport when the accident happened.
--> No sooner............................................ .................................................. .......
8. You feel tired now because you didn't sleep very well last night.
-> Had............................................... .................................................. ..............
9. When did you start the project?
—> How long.............................................. .................................................. ....
10. Their wedding will be held in a lovely church.
--> The church............................................ .................................................. ......