问题补充:
I find it that I can’t speak English well.
A. frustrate
B. frustrating
C. frustrated
D. to frustrate
答案:
A. frustrate
(答案→)B. frustrating
C. frustrated
D. to frustrate
解析:B 考查以ing结尾的形容词和以ed结尾的形容词的区别。以ing指物“令人......”;以ed结尾指人“(感到)......的”。故选B“令人沮丧的”。