Question

【题目】He was very confident himself before the speech and at last he did it very well.

A. withB. aboutC. for

Answer 1

【答案】B

【解析】

句意：他在演讲前对自己非常有信心，最后他做得非常好。短语be confident about 意为“对…充满信心”，这里的介词要使用for，不能使用about“关于”/for“为了”，故选B。