Очень надо.
Open the brackets
1) Mother (cook) the whole evening yesterday.
2) I (not/ see) Ann in January.
3) I (not/ see) Ann since January.
4) Yesterday the pupils (translate) the text before the bell (ring).
5) Ann (be) sure she (meet) this woman before.

Ответ:

1) Mother cooked the whole evening yesterday.

2) I did not see Ann in January.

3) I have not seen Ann since January.

4) Yesterday the pupils translated the text before the bell rang.

5) Ann was sure she had met this woman before.

Ответ:

1) cooked

2)am not saw

3)haven't seen

4)translated, is ringing

5)was, met