Continuing the test:
[3]
* When I got to the cafe,my friends were waiting for me.
* We fell asleep while we were watching a film.
* Amy learnt Italian when she was living in Rome.
* Tom didn't come out with us because he wasn't feeling well.
* The car began to make a strange noise when I was driving home.
* The TV was on, but nobody was watching it.
* when I first met Jessica, she was working in a clothes shop.

[4]

I saw Seu in town yesterday, but she didn't see me. She was looking the other way.

I met Tom and Jane
at the airport a few weeks ago.
They were going to Paris,
and I was going to Rome.
We went to a cafe
and had a chat.
While we were waiting for our flights.

I was cycling home yesterday
when a man stepped out
in to the road in front of me.
I was going quite fast, but
fortunately I managed 
to stop in time and I didn't hit him.

[5]

* Jenny was waiting for me when I arrived.
* Sam took a picture of me while I wasn't looking.
*A- What were you doing at this time yesterday ?
  B- I was at home. I was watching a film.
* A- Did you go out last night?
   B-No, I stayed at home.
* when I was young, I wanted to be a pilot. Later I changed my mind.
* I haven't seen Alan for ages. When I last saw him, he was trying to find a job.
* How fast were you driving when the accident happened?
* we were in a difficult position. We didn't know what to do, so we did nothing.
* Last night dropped a plate when I was doing the washing-up. Fortunately it didn't break.
* I was walking along the street when suddenly I heard something behind me. Somebody was following me. I was scared and I started to run.

This app is very easy to use, and there is just few exercises and levels which I doesn't like, however I couldn't improve my English with such an easy exercises. I doesn't even liked the thing that if I want to use another tenses I need to buy it. I would rather to use another app it's  much helpful and joyful for me than this app.