I find these problems are easy ____

I find these problems are easy ____
a.to be worked out b.to work them out
c.to work out d.to be worked them out
选C 表是被动为什么不选A呢?
英语人气:230 ℃时间:2020-03-22 13:58:14
优质解答
具体原因我也说不清,但有很多这样的例子:
the book is easy to read
the movie is good to watch
the job is fun to do
your voice is nice to hear
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