7．---Did Jack come back early last night？
---Yes．It was not yet eight o'clock ______ he arrived home．（　�。�
A．beforeB．untilC．whenD．after

分析 --昨晚Jack回家早嗎？
--是的，他回來的時候還沒到八點．

解答 答案：C
解析：A：在…之前；B：直到；C：當…的時候；D：在…之后．根據(jù)句意"他回來的時候還沒到八點"及所給選項分析可知，本題答案為C選項；其余選項均不符合題意．注意：本題不要受到not…until"直到…才"的影響．

點評 本題考查從屬連詞的辨析，做此類題目時要清楚各個選項的含義及用法，再根據(jù)句意或其它要求確定最終的答案．

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