Question

【题目】（题文）Don't forget to ________ your bike. Five bikes were lost last night.

A. open B. close C. lock D. avoid

Answer 1

【答案】C

【解析】

句意：别忘了锁住你的自行车。昨晚有五辆自行车丢了。A. open开；B. close关上； C. lock锁上，锁好；D. avoid避免。open与close当动词用时，他们是一对反义词，比如：open the door 开门，close the door关门；结合句意和句子Five bikes were lost last night. 可知，五辆自行车丢了。说明应该是锁住你的自行车。故选C。