英语直接引语the teacher asked:how did you repair it (直接引语变间接引语)teather asked me how I repaired it.但答案上是the teather asked me how I had repaired it.求高人赐教这是为啥要弄成完成时?还有如果从句时选择疑问句,怎么变?我查过网上的语法,说是和一般疑问句变法一样,但也是
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1.宾语从句的主语：一随主,二随宾,三不变.
e.g.(1)She said I will go home .
改：She said that she would go home.（一随主）
(2)She said to me You can go with me..
改She said to me that I could go with her.(二不变)
(3) She said to me He will go home.
改She said to me that he would go home.(三不变)
2.宾语从句中注意时态
1.若主语为一般过去时,则宾语从句的时态要变为过去的某一时态.
e.g.(1)He said I wil go home.“
改 He said that he would go home.(一般将来时改为过去将来时)
（2）He said I have had lunch.
改 He said that he had had lunch.(现在完成时改为过去完成时)
(3)He said I know a lot about the teacher.
改He said that he knew a lot about the teacher.(一般现在时改为一般过去时)
（4）He said I had lunch.
He said that he had had lunch.(一般过去时改为过去完成时）
(5)He said I am playing games
改He said that he was playing games.(现在进行时改为过去进行时）
特殊He said The earth goes around the sun.
改 He said that the earth goes aroung the sun.(当直接引语中表示客观事实时,时态不受主句影响）
3.直接引语变间接引语时,要注意时间状语的改变.
e.g.He said ‘I am listening to music now.
改He said that he was listening to music then.(此句中now改为then)
后面不举例了,时间状语按下面改就对了
now=then
today=that day
tonight=that night
this morning\week=that morning\week
tomorrow=the following\next day
yesterday=the day before
last mouth =the month before
ago=before
here=there
（上面左为直接引语中的时间状语,右为间接引语的时间状语）
4.最后是指示代词要变
this改为that
these改为those像你说的有个规则wether+or有了or就不能用if只能用wether不懂再问望采纳