I'm ashamed that I couldn't work out the problem,___ my classmate Tom could.A and Bwhile C since

问题描述:

I'm ashamed that I couldn't work out the problem,___ my classmate Tom could.A and Bwhile C since
D why

B while
while [[waɪl]]
基本翻译

在这里连接两个意思基本对立的句子时,while = 而
我觉得很羞愧我不能解决这个难题,而我的同学汤姆却可以解决