Thebookfairhasreceivedapositive________fromreaders.
B
A 结果，效果 B 反应，回答 C 解决，协议 D 解决，解答
It_______methreeyearstodrawthebeautifulhorses.
We_____knowledgefromourfamilies,schools,jobs,andthemassmedia.
_______foryourlaziness，youcouldhavefinishedtheassignmentbynow.
Wateriscomposed_______hydrogenandoxygen.
Itrainedhardyesterday,______preventedmefromgoingtothepark.