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什么时候用"be"原型,求与is are等的区别,悬赏100

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解决时间 2021-02-27 18:20
  • 提问者网友:几叶到寒
  • 2021-02-26 18:51
请助例子加解释说明区别

he appear to be talking to himself能用is代替be吗
最佳答案
  • 五星知识达人网友:低血压的长颈鹿
  • 2021-02-26 19:24
在不定式to 后面、助动词和情态动词后面以及虚拟剧中(should +动词原型的句型中)往往用be,举例:
It is nice for you to be with me. 这是不能用is are
She can't be in office as she asked for sick leave today.
The teacher suggests that he (should 可省略 ) be a member of basketball team.
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  • 1楼网友:笑迎怀羞
  • 2021-02-26 19:30
虽然我很聪明,但这么说真的难到我了
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