ПОЖАЛУЙСТА ПОМОГИТЕ

open the brackets and use the right tense

1) We (to listen) to the radio at 5 o'clock yesterday.

2)  They (to come back) to London next month.

3)  She (to get) a letter from her British friend every Saturday.

4)  When my mother (to phone) me I (to cook) dinner.

5)   They (to buy) this book a month ago?

6)   He (to go) to the theatre tomorrow. He has two tickets.

7)   I (to be going ) to study at the university and become a scientist.

8)   My friends (to watch) this film already.

9)   What you (to do) at this time yesterday?

10)  Please, repeat it once again. I (not/ to hear) you now.

11)  You (to do) your homework yet?

12)   We (not/ used to) eat a lot of chocolate.