Evenwiththenewdevelopmentinresearch,onlyatiny________ofalltestsaredonewithoutusinganimals.
A、varietyD
本句的意思是：“即使研究有了新的发展， 只有一小部分的试验可以不用动物” 。因此答案为 D。variety 和 plenty 分别表示“多样”和“大量的”，意思不合适。 amount 后只能接不可数名词，而 test 是可数名词。
As activity carried ________ as one thinks fit in one’s spare time, leisure has several functions.
Which of the following is NOT emphasized by traditional linguists?
In the Grammar-Translation Method, understanding and memorization of_____________were regarded as important means of developing mentality.
Thisisourbestprice,____whichwehaveconcludedmanyorderswithotherbuyersinyourcity.()
Werefer___youletterofMay2.
