computers (has /have)become a part of families.sports (has/have)many advantages.computers (has /have)become a part of families.sports (has/have)many advantages.these sentences put s have or has?

He _________some computers(have/has)应该选哪个? everyone have a computers与everyone has a computers 有什么区别 computers (has /have)become a part of families.sports (has/have)many advantages.computers (has /have)become a part of families.sports (has/have)many advantages.these sentences put s have or has? “There has been great changes in computers in the last few year”为什么是 has been不是have had There ___ great changes in computers in the last few years.A.have hadB.haveC.have beenD.has been computers have changed our life we have a big m___ library.lt has all kinds of books and we can use the computers Peter has five computers at ______(little) How computers have changed our lives We have two computers.改为一般疑问句 In the last few years,there _______ great changes in computers.A.have been B.has been C.was D.were l have a tennis racket.改疑问句并作否定回答 she has a basketball.改疑问句并否定的回答he has （a basketball）对括号内的提问 they have computers改为否定句 There have been great changes in computers(同义句）Great changes have __ __in computers 该填哪些单词__1__,computers have become a more and more __2__ part of our life.Only a __3__ of people can say that their life has nothing to do with computers.__4__ any given moment,people __5__ the world are __6__ by computers.A(n) __7__ offic Each c_____ has some computers.Students can u____ computers to get information and study. have,has, Many kinds of work ________ done by computers.A.has B.has been C.have been D.was 答案给的是C work不是不可数名词吗为什么还要用复数啊? how long have the computers been used by you?改为主动has the big tree been cut down by him?改为主动all the informantion has been used for (writting the article) 对括号中内容进行提问