Mr.Smith gradually _____ a knowledge of the subject

题目

Mr.Smith gradually _____ a knowledge of the subject
A.attained B.achieved C.required D.acquired 老师都有得到的意思 我选的是A 因为 attain 有努力后得到的意思 老师能不能帮我分析一下每个选项

答案

knowledge都是要用acquire的,记住就行,这是搭配.