what weight is the bag?为什么可以这样用?

what weight is the bag?为什么可以这样用? What is the weight of a penis? what is your weight? what is on the desk ? ( 用a bag回答) what is the small bag used( )? what is the small bag used( what is this it is bag.这样对吗 what's the weight of it?如果用复数.be用are还是is what is the best exercise for losing weight? what is the price of the bag?改为同义句 What is in the bag according to the reading? what price【 】the bag?