that he runs the fastest in his class.
A. It is no doubt
B. It is doubtless
C. There is no doubt
D. I don’t doubt about
网友回答
A. It is no doubt
B. It is doubtless
(答案→)C. There is no doubt
D. I don’t doubt about
解析：考查句型。There is no doubt 意为毫无疑问。句意为毫无疑问他是班级里跑的最快的。