问题补充:
单选题Once______bytheexpert,thegirlwillimproveherEnglishinafewmonths.A.being taughtB.to be taughtC.taughtD.teaching
答案:
C解析本题考查状语从句的省略。该部分补充完整是:Once he was taught。连词when, while, if, as, though / although, until, once, whether, unless, where等引导的状语从句中,当主句的主语和从句的主语一致时,常省略跟主句相同的主语和be,只剩下主要的部分。