The writing of the book him ( ) 2 years of hard work
a.cost b,took c.spent d. paid
The writing of the book him ( ) 2 years of hard work
a.cost b,took c.spent d. paid
a cost
the writing of the book是动名词短语,表示的是一件事,“花费”用cost。
take一般用it做形式主语,用句型:It takes sb some time to do sth.
spend的主语是“人”。spend .....on, spend .....(in) doing sth
pay的主语也是“人”。常与for连用。