题目内容
—I saw Betty go to Grandpa Zhang’s home just now.
—Yes. She is often seen ________ the old man with his housework.
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解析:
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警示:此题考查动词不定式在被动语态中的用法。英语中的感官动词,如see,hear,feel,watch,notice等和使役动词如make,let,have等后面的不定式不带to,help后面的动词不定式可以带to,也可以不带to.但用于被动语态时,这些动词后面的不定式必须带to.句中的is seen是被动语态。因此,该题的正确答案是B.例如: (1)He was made to do the work at once. 他被迫立刻做这项工作。 (2)She was heard to use strong languages. 听说她骂人了。 |
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