Question

it is very difficult__ him to do so much work.

Answer 1

for

这个句型是： It's + 形容词（ difficult ) for sb. + to do sth. 对某人来说做某事很..

祝你学习进步，更上一层楼！ (*^__^*)
不明白的再问哟，请及时采纳，多谢！

Answer 2

for
译文：他很难做这么多工作

Answer 3

it is very difficult__ him to do so much work
for him对他来说很困难。
谢谢~

Answer 4

for

Answer 5

for