Mary speaks English very well.____is easy to talk with her A.That B.She C.It D.There
问题描述：
Mary speaks English very well.____is easy to talk with her A.That B.She C.It D.There
答
选A
你试试用中文解释
A. that
Mary speaks English very well.That is easy to talk with her
玛莉说英语很棒，这样很容易与她交谈
不选C的原因是
C.it
Mary speaks English very well.It is easy to talk with her
玛莉说英语很棒，它很容易与她交谈
这样，那个她，又是谁呢？？
所以C根本不合理，不可能自己跟自己说话的
答
选C,It.
这里it是形式主语，真正的主语是后面的to不定式，是固定用法，而且我们也常说it is easy to do sth.这种结构也适用于把easy换成其他的形容词，it is hard/late/good...to do 都可以。
这句话意思是玛丽英语说得很好，很容易和她交流。
答
选C ,Mary 说英语说得很好,和她交流起来很方便.考察一个句型：
It is +形容词 to do something.
答
C.It