Question

【题目】Nobody noticed the thief slip into the house because the lights happened to _______.

A. be put up B. give in C. be turned on D. go out

Answer 1

【答案】D

【解析】句意：没有人注意到小偷溜进了屋子，因为灯碰巧灭了。考查动词短语。A. be put up被建立；被搭建；B. give in屈服；让步；C. be turned on（电源，煤气，水等）被打开；D. go out熄灭。结合句意和语境可知选D。