Mark is very _________.He got a good grade in the English exam this time.A.famous B.well-known C
问题描述：
Mark is very _________.He got a good grade in the English exam this time.A.famous B.well-known C
为什么选C 为什么 不用Hard
D hard
答
hard 当“努力”讲时为副词,修饰动词的,例如：He works very hard.
这里很明显是在be 动词后,要用形容词,所以选C