To have a good performance in the coming speech contest first of all you should know y

问题补充：

To have a good performance in the coming speech contest, first of all, you

should know your .

A. strengths

B. benefits

C. values

D. techniques

答案：

(答案→)A. strengths

B. benefits

C. values

D. techniques

解析：考查词义辨析。Strengths优点，强项，benefits益处，values 价值，techniques 技术，句意：为了在即将到来的演讲比赛中有一个好的表现，首先，你应该知道你的优势。所以选A。