Complete the sentence with the present simple or present progressive form of the verb in brackets

Complete the sentence with the present simple or present progressive form of the verb in brackets.
1.   I ________________ (look) for Jack. Do you know where he is?
2.   You ________________ (know) a lot about computers.
3.   Bob ________________ (watch) the news on TV every morning.
4.   Be quiet! The children ________________ (study) in the room.
5.   Mark ________________ (not do) homework on Saturdays.
6.   Wake up! The teacher ________________ (ask) you a question.