envi遥感影像几何校正:一道英语高考题

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2. She promised _____ he had enough money she would marry him.
A. that B. if C. that if D. if that

B or C?
that 可以省略吗?

选 C
that 引导宾语从句if he had enough money she would marry him.
if 在宾语从句中引导条件状语从句if he had enough money。
that 不能省。

C
that不能省

应该选C

到底能不能省。。。
我记得引导宾语从句时 可以省略 啊

我看应该选C

that 不可以省略,因为if是在宾语从句中起引导条件状语的作用,与宾语从句不属于同一个句群。所以不能省略,选C。