it takes sb some time to do sth主语一般都是物;这个句型很常用。
It takes me two hours to finish my homework every day.
It took the workers three months to complete the project.
sb spends some time /some money (in) doing --主语必须是人。
sb spends some time /some money on sth
I spent five hours in reading the book once again
I spent 200 yuan on the jacket.=I spent 200 yuan in buying the jacket.
sth cost sb some money /sth ---主语也必须是物
The jacker cost me 200 yuan .
The accident cost him a lot of money. 使某人失去某物

已解决