Viết lại câu: Do you have a better refrigerator than this?

Do you hava a better refrigerator than this?
-> Is this.........................................
Do you have a cheaper computer than this?
-> Is this ............................................
It isn't important for you to finish the work today
-> You don't.......................................
Mr Thanh couldn't enjoy the meal because of stomachache.
-> the stomachache prevented ...................................