The blue backpack is "seven dollars"?(对seven dollars提问）

The blue backpack is "seven dollars"?(对seven dollars提问） The blue shirt is seven dollars. The blue shirt is seven dollars.(改为一般疑问句） This blue T-shirt is seven dollars. This blue T-shirt is seven dollars.(改错） （1）the white and blue sweater is 20 dollars （对20 dollars提问） 连词成句 are,these,plants,much,how? seven,is,blue,the,dollars,sw I want a red sweater（对a red的提问）Tom has seven dollars（对seven的 The T-shirt is( seven dollars).His sweater (fifteendollars). Is the sweater seven dollars?作否定回答 The red sweater is 18 dollars对 18 dollars提问 The mew pair of trousers is 150 dollars.（对150 dollars提问）