Here are so many lovely flowers , They must be put into six sees 为什么see要加s?must 后为什么要加be

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Here are so many lovely flowers , They must be put into six sees 为什么see要加s?must 后为什么要加be

Here are so many lovely flowers , They must be put into six sees 为什么see要加s?must 后为什么要加be
Here are so many lovely flowers , They must be put into six sees 为什么see要加s?
must 后为什么要加be

Here are so many lovely flowers , They must be put into six sees 为什么see要加s?must 后为什么要加be
用be 因为被动语态
应该是 sites(位置)复数 而不是 sees

must be表示猜测,没有be的话,就是表示一定,没有猜测的意思
see后面加s是因为six是6的意思,也就要用名词的复数。
本人是英语专业学生,有什么问题都可以来问我