问题
选择题
It's really noisy outside. I would appreciate ____ if you raise your voice in order to make yourself _______ in the back.
A．this; hear
B．that; heard
C．it; heard
D．you; hear
答案
答案：C
题目分析： I would appreciate it if you...这是一个习惯用法，意思是“假如说……我将感激不尽。”hear在这里充当yourself的宾补，与yourself成被动关系，要用过去分词。故选C.