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1. Adam asked me if I liked doing gymnastics.

2. Bill asked Sandra if she was coming the following day.

3. Bill asked Olga what country she came from.

4. Ann asked me if I had seen the library.

5. Sammy asked me when I would come and see her again.

6. Lisa asked Chris how long he had waited for the doctor.

7. Mr Jones asked if parents could visit the school at many time.

8. Nick asked his father if the New York was the biggest city in America.

9. Dora asked Mike how many students there were in his class.

10. Ann asked me what I was going to study.

1. Adam asked me whether I liked doing gymnastics.

2. Bill asked Sandra whether she was coming the following day. 

3. Bill asked Olga what country she came from.

4. Ann asked me whether I had seen the library.

5. Sammy asked me when I would come and see him again.

6. Lisa asked Chris how long he had waited for the doctor.

7. Mr Jones asked me whether parents could visit the school at any time.

8. Nick asked his father whether New York was the biggest city in America.

9. Dora asked Mike how many students there were in his class.

10. Ann asked me what I was going to study.

***

Cách biến đổi thì của các động từ và động từ khuyết thiếu

will / shall      `->`   would/should

am/is/are going to → was/were going to

Present simple  `->`    Past simple

Present continuous  `->`   Past continuous

Past continuous `->` Past perfect continuous

Present perfect  `->`   Past perfect

must                 `->`   had to

can            `->`    could

Cách biến đổi từ chỉ thgian và nơi chốn:

today   `->`     that day

tonight  `->`   that night

tomorrow      `->`     the next day / the following day

yesterday  `->`    the day before/ the previous day

ago      `->`         before

now      `->`       then

this     `->`     that

these   `->`     those

here     `->`    there

Reported speech với WH- question (When, Why, What, Who, How,...)

S + wondered/asked/asked someone/wanted to know + Wh-question + S + V(lùi thì)

Reported speech với Yes/No question:

S + wondered/asked/asked someone/wanted to know + IF/WHETHER + S + V(lùi thì)