So far ,the number of teachers in our school ____(rise)

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So far ,the number of teachers in our school ____(rise)
—Where ___the 2010Word Expo__?
—In shanghai(hold)
-____the Internet __in your school
-yes,but the computer in our office has broken down(use)

has rien (So far 同现在完成时连用,the number of ...表示"...的数量",作主语时,谓动用单三.)
was ...held (上海世博会已开过了,故用一般过去时被动语态)
Is ...used( 互联网是被使用,因此用被动语态)
再问：请问第一个是现在完成时，为什么不是has been risen 第三个为什么不是has ....used呢？？它的答句不就是现在完成吗？
再答：因为rise为不及物动词,没有被动语态的.因此不能用has been risen 第三个用has ....used绝对要不得,因为这必须用被动语态,至于为什么用"一现"的被态? 因为用"一现" 表示经常性的一般行为.当然,这儿用"现完"的被态has ...been used 也讲得通. 句意: 你们学校使用因特网吗?/ 你们学校已经使用因特网了吗?/ (都可以)
再问：请问您能讲解一下。什么是不及物动词吗？我们老师都没有讲过的啊啊
再答：不及物动词: 不能跟宾语的动词,如: come , go , listen , look . 及物动词: 能跟宾语的动词,如: like ,study 等. He comes to school at 7 every morning . (不能说成: comes school ) Please listen to the teacher .(不能说成:listen the teacher ) Look at the blackboard .(不能说成:Look the blackboard ) 因为它们是不及物动词,不能直接跟宾语,必须在前面加上一个介词, 如: to , at . I like apples . / We study English . (apples, English 就是宾语, 那么like, study 就是及物动词.)

So far ,the number of teachers in our school ____(rise) The number of teachers in our school _ growing. The t____ number of the teachers in our school is 126.所缺的单词是 The number of the teachers who _______cars in our school ___ The number of the teachers in our school ( is ) about forty. The number of students in our school ____ 4000 and a number the number of the teachers in our college _____greatly incre The number of teachers in our college _____ greatly increase The number of the students in our school ____(be) over 3,500 The number of the students in our school is ____(减少) The number of the students in our school is larger than ____ The number of the students in our school is about nine ____.