Present Simple or Continuous?

Every Sunday afternoon George ... (go) to see his grandparetns.

He usually ... (take) his bike, but today he .... (walk) because  
his bike is broken.

He usually ... (stay) for two or three hours  
and ... (help) them with the gardening.

He ... (be) a really good boy! 

Please, be quiet! I ... (be) trying to do my homework. It´s Maths. It´s tricky! – Do you need help? – Yes, please. I ... (not think) I can do it on my own. 

... your Dad ... (watch) the news every night? – Yes, he ... (do) 

Can you help me with the puzzle? – Sure, I ... (not do) anything special anyway. In fact, I ... (be) a little bored. 

Joe ... (not like) football. To be honest, he ... (hate) it. He ... (like) tennis and volleyball a lot better. 

Tina ... (be) really busy, she ... (pack) her bags. She ... (want) to take  
all her books with her. She ... (be) a little crazy, isn´t she?

Cats ... (sleep) all day. They ... (be) really lazy animals.  
But at night they ... (like) being outside hunting. 

Listen! Dad ... (sing) in the shower. He always ... (sing) when he is in the bathroom.

He ... (be) a quite good singer, but he ... (not sing) when he knows somebody ...(listen).