单项选择题

John finished reading the book last night and Bob might have（）.

A.done such
B.done
C.done so
D.done which

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单项选择题

（）is a type of display screen that has a touch-sensitive transparent panel covering.

A.Plotter
B.Touch screen
C.Register
D.PDA

【简答题】非常遗憾我们不能取消您的订单。（中译英）

答案： We are sorry that we can’t cancel your order.