Present simple or Present Continuous?

1) Andy sometimes  comics. (to read) 2) We never  TV in the morning. (to watch) 3) Listen! Sandy  in the bathroom. (to sing) 4) My sister usually  in the kitchen. (to help) 5) My mother  breakfast now. (to make) 6) They often  the bathroom. (to clean) 7) Look! The boys  home. (to come) 8) Every day his grandfather  for a walk. (to go) 9) I  with my friend at the moment. (to chat) 10) Cats  mice. (to eat)

I'm not sure that's a good idea!

You're in a meeting at work. One of your coworkers makes a suggestion. You don't like the suggestion, so you politely reject it.

I’m not sure that’s a good idea.

I didn't catch that. Did you hear what he said?

You're watching a movie with your friend and you didn't understand something that a character said. You ask your friend this in hoping he can clear up the confusion.

I didn't catch that. Did you hear what he said?