`1`. It was so late that nothing could be done

It was too late to do anything.

`2`. Bill is going to write to me. I will tell you all his news

I will tell you all Bill's news when he writes to me.

`3`. She didn't say a word as she left the room.

She left the room without saying a word. ( without + Ving )

`4`. Keeping calm is the secret of passing your driving test

As long as you keep calm, you will pass your driving test.

`5`. They never made us do anything we didn't want to do

We were never made to do anything we didn’t want to do.

`6`. It 's a pity I didn’t take my doctor's advice.

I wish I had taken my doctor's advice.

`7`. They made him wait for two hours.

He was made to wait for two hours.

`8`. It took us 3 hours to open the door.

We spent 3 hours opening the door. ( spend + time + Ving )

`9`. A train leaves at 7 o'clock every morning.

There is a train leaving at 7 o'clock every morning.

`10`. During dinner, the phone rang.

While I was having dinner, the phone rang.

b. Change these sentences into passive voice

`1`. I'll ask some one to paint my house blue.

=> My house will be asked to be painted blue.

`2`. I don't like people laughing me at my mistake.

=> I don't like being laughed at my mistake.

`3`. Did anyone see you come in ?

=> Were you seen come in ?

`4`. I want you to leave me alone.

=> I want to be left alone.

`1.`It was too late for anything to be done.

`2.` I will tell you all Bill's news when he writes to me.

`3.` She left the room without saying a word.

`4.` As long as you keep calm, you will pass your driving test.

`5.`  We were never made to do anything we didn't want to by them.

`6.` I wish I had taken my doctor's advice.

`7.` He was made to wait for two hours.

`8.`We spend 3 hours opening the door.

`9.`A train leaves at 8 o'clock every morning

`10.` While I was having dinner, the phone rang.

`b)`

`1.` I'll ask some one to paint my house blue.

`2.` I don’t like being laughed my mistake.

`3.`Were you seen to come in?

`4.`I want to be left alone.