to help
這里是被動語態(tài),see 用于主動句應該是see sb do sth,省略to 的不定式變?yōu)楸粍诱Z態(tài)時要加上to為什么是被動
liu fang was seen____an old man go across the road this morning(help)
liu fang was seen____an old man go across the road this morning(help)
其他人氣：506 ℃時間：2020-02-06 06:28:07
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