Present Simple vs Present Continuous

In the evening I often (to go) to see my friends

You (to keep) to any special diet now?

Where is Boris? - I (to look) for him.

My sister (to do) her homework in the next room.

I (not to think) it is a good idea to eat a lot of meat.

You (to have) anything on sale?

My little brother (not to play) the piano very well.

Listen! He (to practise) the piano again.

Hurry up! We (not to have) much time left.

I (not to feel) like visiting my friend.