He found ___ very difficult to drive a car.A.him B.it is C.i

He found ___ very difficult to drive a car.A.him B.it is C.it D.that
He found ___ very difficult to drive a car.
A.him B.it is C.it D.that
答案给的是C,但我想知道这里为什么不是用“it is + adj.+ to do sth.”句型呢?
还有it在这里是不是做宾语从句的形式主语?

当然是it
你可以这样去理解:
他发现到 it is very difficult to drive a car
如果是'He found it is very difficult to drive a car.'就会有两个动词了是不可以的,
所以要是He found it very difficult to drive a ca