1.IT COST ME 10YUAN TO BUY THE BAG/PURSE/FLOWER.随便改下钱和东西即可.
2.it's time to clean room/eat lunch/ feed feed the dog.
3.It' hard to solve this problem.
It' hard to do the housework.
It' hard to make a model.
It' hard to answer this question.
It' late to go to school now.
4.i find it difficult to lean english!
I think it is very important to learn English well.
I'll make it easy for you to handle