be interested to do sth对吗？
be interested to do sth对吗？以及be confident to do sth / be confident of doing sth or be confident in doing sth 都可以吗？
be interested in doing sth. 是固定搭配短语，不能用be interested to do sth.
例如：She is interested in reading.
He is interested in play football.
be confident of doing sth.
如：I'm confident of passing the exam.
不对!是be interested in doing sth.
例:她对阅读有兴趣
She is interested in reading.
be confident to do sth / be confident of doing sth or be confident in doing sth 不行.应该是be confident of sth /have confidence in sth./doing sth.
你自己再想想吧!
固定搭配：be interested in doing sth, be confident of sth /have confidence in sth./doing sth.
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