自动排挡液价格:The professor could hardly find enough grounds __his arguments in favour of the new theory.

来源:百度文库 编辑:高校问答 时间:2024/04/28 12:27:11
The professor could hardly find enough grounds __his arguments in favour of the new theory.
A.to be based on
B.to base on
C.which to base on
D.on which to base
The answer to the question is D.But I don'tknow why.give me some advice please,thank you.

哈哈,听了你答案就知道了。我当时也不确定是哪个。

这一句话变型:The Professor could hardly base his arguments on enough grounds in favor of the new thoery.
把enough grounds当宾语再变从句就是:enough grounds on which to base his arguments

说简单点:I put these books on the desk.
→the desk on which to put these books

不知道这样说你有没有明白~~~

D