Question

The athlete fell off his bike when he _____ down the hill.

A．cycled

B．was cycling

C．had cycled

D．is cycling

Answer 1

B

试题分析：考查时态：句意：运动员在朝山下骑车的时候从自行车上掉下来了。因为主句是一般过去式，所以是过去正在做…，用过去进行时，选B。