判断新系统是否真的是一个改进很困难。

It's difficult to ___judge whether the new system really is an improvement.

这次会议被认为是一次成功。

The meeting was ___judged to have been a success.

到目前为止，他似乎把工作处理得很好，但现在判断还为时过早。

So far, he seems to be handling the job well, but it's really too soon to ___judge.