Question

—Can you describe _____ it happened?
　　　　—Yes, I was riding on my bike _____ a car knocked me down from behind.

A．when; as

B．how; as

C．how; when

D．how; while

Answer 1

C

考查連詞。how怎么；be doing … when …正在做……突然…….，句意：——你能描述它怎么發生的嗎？——好的，我正在騎自行車的時候，突然一輛小汽車從后面撞到了我。