помогите 2 и 3 пожалуйста​

Ответ:

2.

1) Jessica could understand everything in the text.

2) Could his friends do experiments last year?

3) Your sister couldn't play the violin when she was 5 years old.

4) Could you speak English at primary school?

5)  I couldn't do my English homework!

3.

A. Their songs were very good and they could play really well live.

B. Really? I think the concert was terrible! They couldn't sing at all and they were late!