With a lot of children noise around, the students couldn’t concentrate their attention on

With a lot of children noise around, the students couldn’t concentrate their attention on what they were learning.
A. to make
B. making
C. made
D. were making

A. to make(答案→)B. makingC. madeD. were making解析：考查with复合结构。With的复合结构：with+宾语+宾语补足语；如果做宾语的名称与宾语补足语构成主动关系，使用现在分词的形式；如果二者构成被动关系，就使用过去分词的形式。同时宾语补足语还可以使用形容词，副词，介词等多种形式。本题的a lot of children与make之间构成主动关系，故使用现在分词的形式。句意：因为有很多的孩子在周围弄出了很多的噪音，那些学生没有办法把自己的注意力集中在他们正在学习的内容上。故B正确。

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