问题
选择题
When we put the suggestion to him, he thought highly of it and was ______ about its immediate application.
A．curious
B．content
C．cautious
D．enthusiastic
答案
答案：D
形容词辨析。Be curious about…对…好奇；be content with对…满意；be cautious about对…谨慎；be enthusiastic about热衷于，对…充满热情；句意：当我们向他提出建议的时候，他对我们的建议高度评价，对于建议的立刻运用充满了热情。