The teacher was swimming across the river .句子成分分析.谓语是was swimming 还是 was 还是 was swimming across .across the river 是状语么she was swimming 可否理解为was 为系动词。swimming 为 表语。为什么?

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The teacher was swimming across the river .句子成分分析.
谓语是was swimming 还是 was 还是 was swimming across .across the river 是状语么
she was swimming 可否理解为was 为系动词。swimming 为 表语。为什么?

谓语是was swimming .
across the river 是状语.

was swimming 是谓语,是状语(地点状语)!句子一般是主谓宾,然后定状补插在其中!