A-A+
I am ______ of his chances of passing the exam
问题详情
I am ______ of his chances of passing the examination because he has not worked hard enough.
A.ambiguous
B.ambitious
C.dubious
D.rational请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:C
解析:形容词辨义。这四个选项的词性都是动词,其中ambiguous表示“有多种意思的;意思含糊的”,如:anambiguousreply(意思含混的答复);ambitious是指“野心勃勃的;有抱负的”,如:Theyareambitiousalthoughtheyarepoor.(他们虽穷却很有志气。)dubious表示“令人怀疑的;引起疑虑的;不可靠的;可能有问题的”,如:adubiouscompliment(意义不明的恭维);rational表示“理性的,合理的,推理的”,如:arationalsuggestion(合理的建议)。根据句意,对他是否能通过考试表示怀疑,应该选择C)。