【单选题】--Excuse me , is this your jacket? --Yes, ______.
【单选题】—Is that Jeff? —No, it isn't, Anna. [ ]
【单选题】---Whose purse is it? ---If it isn’t yours, it must be _________.
【判断题】在制作绳头过程中,作绳头需去掉麻芯时,应用锯条锯断或用刀割断,不得用火烧断。
【单选题】Although money is always useful, it isn't all ______.
B.
to which there is in life
【单选题】--- Is this your bike? --- No,________It's________bike.
【判断题】税收担负着国家政权调节阶级关系、生产关系、国际关系的职责。