I made a promise to myselfthis year my first year in high school would be different.(·

问题补充：

I made a promise to myselfthis year，my first year in high school，would be different.(·浙江，4)

A. whether

B. what

C. that

D. how

答案：

A. whether

B. what

C. that

D. how

解析：C

解析that引导同位语从句，在从句中不作句子成分，补充说明promise的内容。