题目内容
In the lecture, little Tom kept silent all the time unless _________ to express his opinion.
| A.he invited | B.he is invited | C.invited | D.being invited |
C
试题分析:句意:在演讲中,小汤姆一直保持沉默,除非他被邀请发表自己的看法。动作invite与其逻辑主语little Tom之间是被动关系,故用过去分词作状语,可知选C。
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