Question

单项选择
In his letter was his promise _____ he would spend the Christmas Eve with me

1. A.
   that
2. B.
   what
3. C.
   which
4. D.
   whether

Answer 1

A
考查同位语从句。Promise“承诺，许诺”，后跟that引导的同位语从句，对promise进行补充说明。句意“他在心中作出承诺，会和我一起过圣诞节平安夜。”故选A。