一、單項(xiàng)選擇20%(每小題1分)
從A、B、C、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳答案。
1. After the class was _____, some of the students went to the playground, playing basketball.
A. at an end B. in the end C. by the end D. at the end
2. They work day and night; however, _______ of the money they make goes to their so-called eldest brother.
A. four-fifth B. four-fifths C. four-five D. four-fifthes