we are glad to know they have succeeded in finishing their work /.a:as expected;为什么用形容词?
问题描述：
we are glad to know they have succeeded in finishing their work /.a:as expected;
为什么用形容词?
答
we are glad to know我们很高兴知道
they have succeeded他们成功了
in finishing their work 完成作业
as expected 如预期的
答
哪个形容词？glad?
答
对的啊,as they are expected 省略了they are