The job proved to be much more difficult than I had expected.这句话对么?我觉得than I had expected应改为than I had expected it to be?

The job proved to be much more difficult than I had expected.这句话对么?
我觉得than I had expected应改为than I had expected it to be?

这句子没错,你所说的it to be完全可以省略掉

正确

是对的，expected后面可以省略的