each of the dictionaries is very useful.you can take any of them.句子中的is 可不可以换成 is of?即：each of the dictionaries is of very useful.you can take any of them.

each boy each of us each of the boys on each side of the The editors of the edition of the Oxford dictionary have included it as a verb.It means to search something on the Internet.This makes some words like google me part of the English laguage.Google is now a part of the English language.The dictiona each boy和each of the boys有什么区别 near the end of each class=before each class_____ each of the student与each student的区别 each part of the body翻译 each side of the road,还是every on each side of the street each of the boy谓语动词用 write the beginning letter of each picture Each of the students_(wants) a computer Each of the boys has to take What is the name of each sport? answer each of the questions b____ The power output of each channel is Each of boys和Each boy有什么区别?Each of the boys和Each boy有什么区别？ 英语语法：Looking up all the new words in the dictionary took him a lot of time.正在学语法,例句上说ing形式做主语,这里的ing形式有可能是一个词,也有可能是一个短语?就像Looking up all the new words in the dictiona