pp-2-13

sugarhouse

13. Cotton is grown throughout the world, and

   _________ year about 50 million bales, weighing

   nearly 500 pounds apiece, are produced.

                   each  

                   a  

                   by a  

                   in which  

答案為A,可是仔細看一下後面的動詞為”are “ produced,主詞為each對嗎??

wanghu

bales是主语，each year最状语

sugarhouse

非常感謝^^