Question

—Do you go to work every day?

—By bike.

1. A.
   What
2. B.
   Who
3. C.
   How
4. D.
   When

Answer 1

C
考查疑问词辨析。根据答语By bike“乘公共汽车”可知，问句是对交通方式提问。须用疑问副词How。故选C。