it后面可以不加is,因为后面接的是形容词,形容词之前必须有系动词的。比如:
I am tired.
He is tall.
It sounds great.
I find it hard to run fast.
find 可以做系动词,而think不行。
所以think后面必须有is,从而构成宾语从句
完整句式是I think (that) it is adj. to do sth.
that一般可以省略。
当然,上面think的情况同样适用于find,I find (that) it is adj. to do sth.也是可以的
追问I think (that) it is adj. to do sth
I find (that) it is adj. to do sth.
这两个句型中is都可以省略吗?