I spend two hours on my homework.It takes me to hours to finish my homework.I use two hours to finish my homework. It costs me 200 yuan to buy this bike.I buy this bike for 200 yuan.I spend 200 yuan on this bike.I pay 200 yuan for this bike.
I spend two hours on my homework.It takes me to hours to finish my homework.I use two hours to finish my homework. It costs me 200 yuan to buy this bike.I buy this bike for 200 yuan.I spend 200 yuan on this bike.I pay 200 yuan for this bike.