I didn’t have to work all weekend — I did it by . A. chanceB. choiceC. accidentD. myself

问题补充：

I didn’t have to work all weekend — I did it by .

A. chance

B. choice

C. accident

D. myself

答案：

A. chance

(答案→)B. choice

C. accident

D. myself

解析：考查短语辨析。by chance / by accident偶然地，by choice 出于选择，by myself 靠我自己，句意：整个周末我没有必要工作。我做工作是出于自择。所以选B。