`1`.The science teacher asked Nguyen how many planets there were in the Solar System

`\rightarrow` Câu tường thuật NV ( Wh ) : S + asked + O + wh + S + V ( lùi thì ) ( `1 , 3` )

`\rightarrow` HTĐ `->` QKĐ ( ĐT Tobe ) : S + was / were + adj / n ( `1 , 3` )

`2`.She said that she would hand in her assignment to the teacher the following day

`\rightarrow` Câu tường thuật : S + said + that + S + V ( lùi thì ) ( `2 , 4` )

`\rightarrow` TLĐ `->` TLTQK : S + would + V

`3`.Lan asked Nam what subject he was interested in

`4`.Hoa said that it might rain that afternoon

`\rightarrow` may `->` might

`\rightarrow` this `->` that

`\text{# Kirigiri}`