the research requires more money than----

来源:百度知道 编辑:UC知道 时间:2024/07/03 05:38:02
07年专业四级的语法题,没有详细解释,不懂.恳求各位能不吝赐教
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The research requires more money than____.
A. have been put in
B.has been put in
C. being put in
D. to be put in
给出的是B.

The research requires more money than (that) has been put in.
句子省略了that
翻译:这项研究需要的经费比已经投入的经费要多。
意思是已经投入的经费还不够。

根据句意首先排除C和D
that has been put in 作为宾语从句,由于money不可数,所以用单数形式has,