a. Rewrite the following sentences that keep the same meaning.
1. It was so late that nothing could be done
It was too....
2. Bill is going to write to me. I will tell you all his news
.. when................................
3. She didn't say a word as she left the room.
She left the room ...
4. Keeping calm is the secret of passing your driving test
As long as .............................................
5. They never made us do anything we didn't want to do
We .....................
6. It 's a pity I didn’t take my doctor's advice.
I wish...................................................
7. They made him wait for two hours.
He was ........................................
8. It took us 3 hours to open the door.
We .............................................
9. A train leaves at 7 o'clock every morning.
There is ......................................
10. During dinner, the phone rang.
While I ...........................
b. Change these sentences into passive voice
1. I'll ask some one to paint my house blue.
2. I don't like people laughing me at my mistake.
3. Did anyone see you come in ?
4. I want you to leave me alone.