1 ”I will go to Ha Giang to marrow”

-> she said she would go to Ha Giang the next day

Reported speech dạng statements: 

S1 + said to O/told O/said + (that) + S2 + V (lùi thì).....

2 ”what country do you come from?”

-> hai asked me what country I came from

Reported speech dạng wh/how questions:

S1 + asked + O + wh/how + S2 + V (lùi thì).......

3 “do you like English?”

->tuan asked Nga if she liked English

Reported speech dạng Yes/No questions:

S1 + asked + O + if + S2 + V (lùi thì).......

4 “which grade are you in?

->she asked Lan which grade she was in

Reported speech dạng wh/how questions:

S1 + asked + O + wh/how + S2 + V (lùi thì).......

#NC

=>
1. She said that she would go to Ha Giang the following day.
2. Hai asked me what country I came from.
3. Tuan asked Nga if she liked English.
4. She asked Lan which grade she was in.
Câu tường thuật dạng WH questions : asked sb + từ để hỏi + S V(lùi thì)
Câu tường thuật dạng Yes/No questions : asked sb if S V(lùi thì)
Câu tường thuật -> lùi thì
Will -> Would
HTĐ -> QKĐ