【题目】I was totally mixed up by his ____ remarks. I really didn't know what he meant.
A.definite
B.obvious
C.careful
D.ambiguous

【答案】D
【解析】考查形容词辨析。A. definite明确的；B. obvious明显的；C. careful小心的；D. ambiguous模棱两可的。句意：他模棱两可的话把我完全搞混了。我真地不知道他是什么意思。故选D。