问题
选择题
I didn’t have to work all weekend — I did it by _______.
A.chance
B.choice
C.accident
D.myself
答案
答案:B
由于上文说 didn’t have to work,所以下文相应的语境应是 did it by choice。类似地,下面一题应选D,也是因为choice与下文的have to do it 相呼应: