早教吧作业答案频道 -->英语-->
Theteacherhashelpedmesolvetheproblem.这句话中help为什么要加ed?顺便帮我多举几个这种用法Theteacherhashelpedmesolvetheproblem.这句话中help为什么要加ed?顺便帮我多举几个这种用法
题目详情
The teacher has helped me solve the problem.这句话中help为什么要加ed?顺便帮我多举几个这种用法
The teacher has helped me solve the problem.这句话中help为什么要加ed?顺便帮我多举几个这种用法
The teacher has helped me solve the problem.这句话中help为什么要加ed?顺便帮我多举几个这种用法
▼优质解答
答案和解析
现在完成时的结构:have / has +动词的过去分词,即( has helped 是现在完成时结构)
又如
He has finished his homework.
He has worked for ten years.
They have learned English for three yreas .
又如
He has finished his homework.
He has worked for ten years.
They have learned English for three yreas .
看了Theteacherhashe...的网友还看了以下:
(1)操作、观察:任意画⊙O,在⊙O内任取一点P(不为圆心),过点P直线l,交⊙O于点A、B.若直 2020-05-13 …
用所给字母拼成单词.1.a,l,a,d,s.2.a,d,o,s.3.c,o,r,p,n用所给字母拼 2020-05-15 …
设直线l的方程为(a+1)x-y+2-a=o(a∈R)(1)若L在两坐标轴上截距相等,求L的方程( 2020-06-07 …
L/a是什么意思 2020-06-08 …
如图,已知点A,B在半径为1的O上,∠AOB=60°,延长OB至C,过点C作直线OA的垂线记为l, 2020-06-12 …
如图,在△ABC中,AD是中线,O为AD上的中点,直线l过o点,过A,B,C三点分别作直线L的垂线 2020-06-22 …
美式英语(a)(æ)(o)这三个怎么发和英式英语(a)(æ)(o)什么区别美式英语(a)(æ)(o 2020-07-09 …
如图,已知直线l与⊙O相离,OA⊥l于点A,OA=5,OA与⊙O相交于点P,点B在⊙O上,BP的延 2020-07-13 …
如图,直线l与O相离,过点O作OA⊥l,垂足为A,OA交O于点B,点C在直线l上,连接CB并延长交 2020-07-21 …
圆O的半径r为13厘米,圆心O到直线l的距离OD为5厘米,点A,B,C在直线上若DA=13,则点A 2020-07-26 …