- How does your project help poor children in that Hope Primary School Mr Lee? - We help

问题补充：

- How does your project help poor children in that Hope Primary School, Mr Lee?

- We help them sending them teachers and books.

A. with

B. without

C. by

D. for

答案：

A. with

B. without

(答案→)C. by

D. for

解析：考查介词. With带有,用某种工具;without没有;by通过某种方式;for为了.句意:你的工程如何帮助那些希望小学的贫困儿童们?_我们通过输送老师和书籍来帮助他们。by doing sth表示通过某种方式做某事。故选C。