单项选择题
As we know, blood types A and B cannot receive AB, but AB may receive A or B. Type O can give to any other group; hence it is often called the（） donor.
A.general B.popular C.universal D.common
单项选择题 His latest piece of work was（）by a song he heard on the radio.
单项选择题 Each of them had a different（）of what actually happened, but hers was by far more believable.
单项选择题 Most people were no longer listening to his long（）story.
