Question

In front of the whole class, he made his promise ________ he would win the prize

In front of the whole class, he made his promise ________ he would win the prize．
A. that
B. which
C. what
D. whether

Answer 1

答案A
考查同位语从句。“他作出了一个他会赢得大奖的承诺”。He would win the price是promise的具体内容，因此为同位语从句，引导词使用that。