помогите пожалуйста правильно раскрыть скобки))

Задание 1. Раскройте скобки, употребляя глаголы в Present
Perfect, Present Simple, Present Continuous, Past Simple или Past Continuous.

I have seen this film
this week. I like it very much.When I entered the
kitchen, I saw that my mother was standing at the
table and cutting) some cabbage. She was cooking dinner.With whom were you
discussing this question yes­terday?The new school
began work­ing last year.The rain has stopped
but a cold wind is still blowing.We have already solved
the problem.When did your friend return) from the south? —She returned yesterday. — Did you
go to the sta­tion
to meet her? — No, I .didn't. I was too busy.Where is your brother? — He has just come) home. He is taking a shower in
the bath­room now. Are you working right now? — Yes, I am preparing for the
English exams.Why are you shivering?
— I am shivering
because I am cold.It was raining hard when I left home yesterday, so I returned, put on my raincoat and started again.(You (to work) right
now? — Yes, I (to prepare)
for the English exams.Why you (to shiver)?
— I (to shiver)
because I (to be) cold---это уже было).) A world-famous violinist is playing at
tonight's concert.The children were playing with their train set the whole evening yesterday.