问题
选择题
I don’t doubt _________ his advice is well worth________.
A．that, to take
B．if, to take
C．whether, taking
D．that, taking
答案
答案：D
题目分析：句意：我不怀疑他的建议很值得考虑。在否定句和疑问句中，doubt
后面接that引导的宾语从句。be worth doing sth值得做某事