1.We were packing for our trip when a friend of mine came. (pack)

What are you doing? (do)

Won't you have enough time to do it tomorrow?

Will you be still working if I come in an hour?(work)

No, we won't.

We will be watching TV. (watch)

Tom and Betty are going to join us.

2.The train was leaving when we got to the station. (leave)

"We are late again", Peter said.

"And the next train is coming at 2 p.m" (come)

So we will be waiting on the platform for an hour and a half. (wait)

3. I was cooking dinner while my sister was cleaning the flat when we heard a telephone call. (cook,clean)