A)watchful
B)ready
C)alert
D)attentive
正确答案:C答案:C
[试题分析]形容词辨析题。
[详细解答]alertadj.提防的,警惕的,填入后符合句意,故答案为C。watchful一般不形容人。

A)watchful
B)ready
C)alert
D)attentive
正确答案:C上一篇 A) As B) Because C)Though D)If
下一篇 We can draw a conclusion from the text that______.A) oil-price shocks are less shockin