To what ______ was he prepared to supply money for the plan?

To what ______ was he prepared to supply money for the plan?
A、range
B、amount
C、extent
D、quantity
【正确答案】：C
【题目解析】：本题考查固定词组to...extent。to...extent:到...程度。一般不用to与range,amount,quantity搭配。故只能选C。题意为：他准备为这个计划出钱到什么程度？答案为C。