Unit 6:
Ex. 1
1.	I was having dinner (at 8 o’clock yesterday evening)
2.	I was on a bus on my way home (at 5 o’clock last Monday)
3.	I was cleaning my room (at 10.15 yesterday morning)
4.	I was sleeping at home (at 4.30this morning)
5.	I was having my dinner (at 7.45 yesterday evening)
6.	I started to learning Unit 6 of this book (half an hour ago)
Ex. 2
1.	Matt phoned while we were having dinner
2.	The doorbell rang while I was playing the computer game
3.	The car began to make a strange noise when we were going throw the strange fog
4.	Jessica fell asleep while she was watching boring movie
5.	The television was on, but nobody was watching it
Ex. 3
1.	I saw Sue in town yesterday, but she didn’t see me. She was looking the other way.
2.	I met Tom and Jane at the airport a few weeks ago. They was going to Paris and I was going to Rome. We had a chat while we were waiting for our flights.
3.	I was cycling home yesterday when a man stepped out into the road in front of me. I was going fast, but luckily I managed to stop in time and didn’t hit him.
Ex. 4
1.	Jenny was waiting for me when I arrived.
2.	“What did you do at this time yesterday?” – “I was asleep”
3.	“Did you go out last night?” – “No, I was too tired”
4.	How fast you were driving when the accident happened?
5.	Sam took a picture of me while I wasn’t look.
6.	We were in a very difficult position. We didn’t know what to do.
7.	 I haven’t seen Alan for ages. When I last saw him, he was trying to find a job.
8.	I walked along the street when suddenly I heard footsteps behind me. Somebody was following me. I was scared and I started to run.
9.	When I was young, I wanted to be a pilot.
10.	Last night I dropped a plate when I was doing the washing-up. Fortunately it didn’t break.