---Did you get there bybike?---No I took taxi.A. a; aB. 不填；aC. the; theDa; the

问题补充：

---Did you get there bybike?---No, I took taxi.

A. a; a

B. 不填；a

C. the; the

Da; the

答案：

A. a; a

(答案→)B. 不填；a

C. the; the

D. a; the

解析：by+交通工具表示乘坐某种交通工具；take a taxi 乘坐出租车是固定短语。