2 и 3 пожалуйста помогите решить

2

2 Have you been aiting long?

3 What have you been doing?

4 How long have you been living in Baker Street?

5 How long have you been selling computers?

3

2 have been waiting

3 have been learning Spanish

4 She's been looking for a job

5 Mary has been working in London

6 have been writing to each other