C
首先 regret doing "遗憾做了某事" 跟现在分词,跟动词不定式是"还没做什么表示遗憾" 句意是:他们没有按时完成项目,我非常遗憾没能帮上他们的忙.
现在分词的否定形式 not doing
所以选C
比较:
Regret to do sth 后悔,遗憾要做什么事(但还没做)
Regret doing sth 后悔,遗憾做过什么事
例句:
I regret to have to do this,but I have no choice.
我很遗憾必须这样去做,但我实在没有办法.
I don't regret telling her what I thought.
我不后悔没把我的想法告诉她.
they failed to finish the project in time.i regretted______them.
they failed to finish the project in time.i regretted______them.
A to be not able to help B being not able to help C not being able to help
D not be able to help
为什么不是其它选项呢
A to be not able to help B being not able to help C not being able to help
D not be able to help
为什么不是其它选项呢
英语人气：283 ℃时间：2019-12-09 08:57:41
优质解答
我来回答
类似推荐
- They didn’t pass the exam last time,I regretted _____.
- she asked them to eoplain it.why hadn't they got to class time.改成宾语从句
- We send our children to school to prepare them for the time when they will be big and will have to work for themselves.T
- 是it takes they much time还是it takes them much time?
- they和them都有 他们,它们的意思,请问什么时候用they 什么时候用them
猜你喜欢
- 1She used to have long hair(改为一般疑问句）
- 2作文 最为难的一件事
- 3一堆煤重45t,一辆卡车要10小时才能用完,4小时完成任务的几分之几.完成任务的5分之3要几小时 算式
- 4周长为68的矩形ABCD被分成7个全等的矩形,则矩形的面积为多少
- 5因式分解：m(m-1)+1/4 （x^2+2X）^2+2(X^2+2X)+1
- 6自行车哪些是为了增大摩擦力,哪些是为了减小摩擦力
- 75. 一种烟囱管长2.8米,它的横截面是边长2分米的正方形,做10个这样的烟囱管需要多少平方米的铁皮?
- 8已知命题:若二次函数y=ax的平方+bx=c(a不等于0)的图像与x轴交与(x1,0),(x2,0)两点,则y=a(x-x1)(x-x2)
- 9you don't do this work without feeling you want to make a difference请问这句话是什么意思
- 10多项式x方-y方-2x+4y+7的最小值