单项选择题
What he said was too（）for me to understand.
A.compound B.complex C.comprehensive D.conventional
单项选择题 We've done our（）to make the process as simple as possible.
单项选择题 The noise was so faint that you had to（）your ears to hear it.
单项选择题 The manufacturers refused to take all（）for damage caused by misuse.
