Barbara is easy to recognize as she’s the only one of the women whoevening dress.A. wearB.

问题补充：

Barbara is easy to recognize as she’s the only one of the women whoevening dress.

A. wear

B. wears

C. has worn

D. have worn

答案：

A. wear

(答案→)B. wears

C. has worn

D. have worn

解析：考查主谓一致和时态。首先the only one of ….为先行词时，定语从句修饰的是one，即one是主语，而非后面的复数women，根据主谓一致的原则，谓语动词应该用复数，排除A，D。另外，从“is”可以看出句子是要表示一种习惯，因此要用一般现在时，排除C，故选B