Present Perfect vs Present Perfect Continuous 2

Complete the following sentences with the present perfect or present perfect continuous forms of the verbs in bold. ANSWERS
1) The bathroom's in an awful mess! What (the children/do)?
2) The police (look for) the missing woman for three days now.
3) Sebastian loves London. He (be) there many times.
4) I (watch) the news every evening.
5) He (work) at our company since 2015.
6) She (write) four books and she is working on another one.
7) Mark (watch) TV for hours; that's why his eyes are red.
8) Usually I study at home, but I (study) in the library for the last week.
9) I (have) my cat for nine years.
10) We (finish) our exams. We're very happy.