I never doubt ________ his advice is of great ________

试题详情及答案解析

I never doubt ________ his advice is of great _________ to me.

A．that; helpful	B．if; help
C．whether; helpful	D．that; help

答案：D

试题分析：句意：我从不怀疑他的建议对我有很大帮助。never doubt 后面常跟that从句，be of great help =" be"helpful，所以选D。
考点：考查宾语从句的引导词及名词。