It was clever of you to answer this question

It was clever of you to answer this question 英语选择题1. It was clever ______ you ______ this question. A. of it was clever ______you _________ this question . It is s_ of you to answer the difficult question. It is clever of you to have solved this problem. This question is easy and a__ of you can answer it Answer to question还是answer of question the answer of this question和the answer to this question哪个正确? Everyboby e____ Jack was able to answer this question Andy was clever enough to answer my hardest question.Andy wa 1.to my____ ,the clever boy couldn`t answer this question Do you know the answer of this question?(改错~）