Помогите,пожалуйста... Put the verbs in brackets into the present perfect simple

Помогите,пожалуйста...
Put the verbs in brackets into the present perfect simple or the present perfect continuous.

1 ____ (you know) him long?

Yes, we ____ (go) out together for two years.

2. How long ____ (you read) that book?

Oh, I ____ (have) it for about ten years.

3 ____ (you be) here for a long time?

Yes, we ____ (wait) since two oclock.

4 ____(she work) in the same office all her life?

No, she ____ (have) this job since she got married.

5. Why ____ (you study) German?

Because I ____ (always want) to learn it.