The work is too difficult for Mr. Zhu to finish in a week. He needs ______ days.
The world has a big headache and it _______ by money. It began in America last year.
The art club is for members only. You can’t go in _________ you are a member.
— _________ 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_________.