1.___the efforts of all colleagues,the project has got great

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1.___the efforts of all colleagues,the project has got great success.A.Depending upon B.depend on
c.having depended on D.to denpend on
选择哪个,为什么?
2.the decline in gross profit was __the dropping prices of chemical product.
A.due to B.Because C.for D.as
选哪个?为什么
四个选项有何区别.

第一题选a,逗号前的部分为非谓语部分,所以b排除,d中to do一般表目,排除,c一般需要特定的时间先后关系,也就是明确说明该动作发生在主句动作之前.
第二题选a,bcd三个词均后均接句子,为连词,a答案后接非谓语或名词.
再问： c一般需要特定的时间先后关系,能否举例说明？
再答：不需要啊，它就是由于和因为的意思，和owing to意思相同且用法一样，例：I love the food due to its taste. 望采纳喔！
再问：我问的是第一题
再答： Having eaten breakfast，he went to school.吃早餐在上学之前，所以一般这样用。发生在过去时间之前，非谓语部分用完成时。

with great efforts of the peace-loving people all over the w ( )of the project has been finished in spite of all the efforts they did not succeed This one has got a picture of the Great Wall on it . He has got a picture of the Great Wall on it.（改疑问句） most of the action has revolved around efforts to tap They all agree____George.Has the project been passed? They all agree ( ) George.Has the project been passed? ——of the children has got a pen and some paper.A Each B All This one has got a picture of the Great Wall on it..后面可以造什么句 when I got to the place ___the town ought to have been ,all _______ great efforts to practice English,Mary has made much