看一看，寫一寫，完成對(duì)話。
— How much is the cap?
— ___________ yuan.
— How much is the ___________?
— It's thirty yuan.
— How much are the ___________?
— They are ninety yuan.
— How much is the T-shirt?
— It's ___________ yuan.                                                           
1. 20  2. jacket  3. boots  4. 46
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