1.It cost my father 10 yuan for this book. My father paid 10 yuan for this book. 2. She paid(purchased) 100 yuan for the new shirt. She spent 100yuan on the new shirt.
主语(人) spend sometime/money (in) doing(v.ing) sth. 主语(人) spend sometime/money on sth. 主语(物) cost sb. somemoney 主语(人) pay somemoney for sth. It takes/ed sb. sometime/mo...