Помогите пожалуйста. presets simpole or present continios?

1. What do you want-I want some tea.-present simple2/Who is playing the rums? -it is my brother, he plays drums very well.-pr. continous When do you leave the house? -at 8,30 in the morning.-pr. simple4.What are you doing? -I`m doing my homework.-pr. continous5.What are the boys singing at the moment? -They are singing an old english song.-pr. continous