他花费了10元买了一支钢笔 英语怎么说

他花费了10元买了一支钢笔

He has cost 10 yuan having bought a pen.

cost的主语是物而不能是人，如it cost he ten yuan…而不能说he cost ten yuan(他值10块钱).人作主语的有pay for ,spend.买钢笔花了十元：he spent ten yuan buying a pen或the pen cost he ten yuang或he paid the pen for ten yuan

He spends ten yuan buying a pen.
He pays ten yuan for a pen.
A pen cost him ten yuan.

he costs ten yuan to buy a pen.

he bought a pen for ten yuan.

He cost ten yuan to buy a pen.