题目:
- How does Mrs. Green usually go to work?
- She _____ take a bus, but now she _______ riding a bike because she wants to lose weight.[ ]
A. used to; used to
B. was used to; is used to
C. used to; is used to
D. is used to; used to
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C