Homework ( )on time will lead to better gardes.A.done B.be done C.having done D.to have been done要说明原因哦。

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Homework ( )on time will lead to better gardes.A.done B.be done C.having done D.to have been done要说明原因哦。

Homework ( )on time will lead to better gardes.A.done B.be done C.having done D.to have been done要说明原因哦。
Homework ( )on time will lead to better gardes.
A.done B.be done C.having done D.to have been done
要说明原因哦。

Homework ( )on time will lead to better gardes.A.done B.be done C.having done D.to have been done要说明原因哦。
handed in
上交,
既然有了选项,可以看出要考察的是动词的不同形式.
这却答案是a,整句的意思可以这样理按时完成作业会带来好成绩.
题目中的句子的结构已经是完整的了,
()will lead to better grades.
所以,homework __ on time 整体是句子的主语.这样,__ on time就是一个定语来修饰homework,即什么样的家庭作业
b 是动词形式,不正确
c 是主动语态,不符合
d 不定式结构也可以做定语,但表示的是未来要发生的动作,

doing/finishing

finished

finished/handed in(两个字也可以的话。。。)

是不是 gardes---grades??
be due ??
be handed in ???
我认为是这样!!

A,homework done on time will lead to a better grades
done 过去分词作定语,表被动
按时做作业将会有更好的成绩

homework done on time will lead to a better grades 主语应该是个名字.DONE用来修饰.