He ___ a knowledge of the language by careful study.选项:a、obtained_英语解答

He ___ a knowledge of the language by careful study.
选项:
a、obtained
b、earned
c、gained
d、acquired
能否能解释下该如何选择,

人气：216 ℃　时间：2020-05-29 07:11:19

解答

D,虽然四个都解释为得到,但第四个是用来得到知识的