Question

【题目】Mark didn't wake up _______ his friend called him this morning．

A. beforeB. whileC. untilD. after

Answer 1

【答案】C

【解析】

句意：直到今天早上他的朋友给他打电话，马克才醒来。考查连词。A. before在…之前；B. while当…时候；C. until直到，在…以前；D. after在…之后。短语not…until+从句：直到…才…；结合句意可知填until；选C。