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This semester the courses Williams has taken

2022-08-01 20:22:09 问答库阅读 166 次

问题详情

This semester, the courses Williams has taken are History, Mathematics, Chemistry and Physics, Mathematics ______ the most important.
A．is
B．being
C．has been
D．of

参考答案

正确答案：B
解析：本句是分词独立结构。一旦分词的逻辑主语不是主句中的主语，就必须给分词加上逻辑主语(即分词独立结构)。