Not until the game had begun __ at the sports ground.
C
【考情点拨】考查notuntil引导的时间状语从句。
【应试指导】旬意：直到比赛开始他才到达运动场。notuntil引导时间状语从句时主句要部分倒装。从句中的时态为过去完成时，故主句中的时态应为一般过去时，故选C
Wheneverhecomestoourgarden,hecan’thelp_________theflowers.
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