В Present Continus
1.While my mum (to cook) dinner we (to play) the piano.
2.You always (to smile) when I ask you questions! (раздражение)
3.We (to lie) in the at 5 p.m. tomorrow.
4.My granny (to watch) TV when we (to come) back yesterday.
5.Our children (can not meet) at the station last week.

1) While my mum is cooking dinner, we are playing the piano.  - Когда моя мама готовит ужин, мы играем на пианино.

2)  You are always smiling, when I ask you questions! - Ты всегда улыбаешься, когда я задаю тебе вопросы!

3) We will lie in the at 5 p.m. tomorrow - Мы будем завтра лежать в 5 часов вечера..

4) My granny was watching TV, when i came back yesterday. - Моя бабушка смотрела телевизор, когда я вернулась..

5) Our children aren't meeting at the station last week.