7. The children failed to hide their disappointment when they found out the school the party.
参考答案
D
2022_天津卷
7. The children failed to hide their disappointment when they found out the school the party.
D
【答案】D
【解析】
【详解】考查动词的时态。句意:当孩子们发现学校取消了派对时,他们无法掩饰他们的失望。结合句意可知,学校取消派对发生在前,孩子无法掩饰失望发生在后,故从句的cancel 为“过去的过去”,需要用过去完成时态。故选D 项。