To finish the work is very difficult.改为同义句 ———— ————— very difficult____ ______the w

问题描述:

To finish the work is very difficult.改为同义句 ———— ————— very difficult____ ______the w
ork.

it is very difficult to finish the work.
to do 结构位于句首做主语,可以使用it 做形式主语,将to do结构后移