Ответ:

I must hoover my room every week.

I must tidy my room every week.

I mustn't throw rubbish in my room.

I must take a dog for a walk every day.

I mustn't wash my car every day.

I must clean the windows every week.

I must do the washing-up every day.

I mustn't wash the bath every day.

I must clean my kitchen every month.

I mustn't clean my windows every day.