—Tony said he could fix my bicycle but I really doubt it.—.He’s very good at this sort of

问题补充：

—Tony said he could fix my bicycle,but I really doubt it.

—.He’s very good at this sort of thing.

A. Don’t worry

B. I couldn’t agree more

C. Of course

D. A piece of cake

答案：

(答案→)A. Don’t worry

B. I couldn’t agree more

C. Of course

D. A piece of cake

解析：Don’t worry. 意为“不必担心”。根据所提供的情景He’s very good at this sort of thing.可判断出不必担心。故选A项。I couldn’t agree more. 意为“我完全同意”。Of course. 意为“当然。”A piece of cake. 意为“小事一桩”。