Question

【题目】Although it was very cold outside，he kept on ________ his bike.
A.rides
B.ride
C.riding
D.to ride

Answer 1

【答案】C
【解析】句意：尽管外面很冷，他仍坚持骑自行车。keep on doing sth坚持做某事，故此处用动名词riding，故选C。