It's really you not to tell your parents about the problems. Do you think you can solve them on your own?
— _________ yogurt do you need? — Three cups.
This dictionary is pretty cheap. The price of it is _________ of the three.
— Must I answer this question in English? — No, you_________.
— Lisa, we need to clean the kitchen. Could you _________ the trash? — Yes, sure.
Helen has two sisters and a brother. Her brother is working, but _________her sisters are still at school.