`4` Mai asked Ba what he was doing at present.

`5` He asked her how much rice she could eat a day.

`6` He asked us where my family had spent summer vacation.

`7` Ba asked Lan why he always got to school late.

`8` Nam asked them how much they spent on clothes every month.

`9` I asked Mai what her favorite music was.

`10` I asked Ba who he was working with those day.

Cấu trúc câu tường thuật dạng câu hỏi Wh.

S+asked+(o)/wondered/wanted to know + WH + S+V(lùi thì ).....

Lưu ý khi chuyển đổi sang câu gián tiếp ta đổi 3 yếu tố sau :  ngôi ; thì của động từ và trạng từ chỉ thời gian và nơi chốn

`-` Câu tường thuật NV : S + asked + O + wh + S + V ( lùi thì )

`-` HTTD `->` QKTD : S + was / were + V-ing

`-` Can `->` Could

`-` QKĐ `->` QKHT : S + had + V3 / PII

`-` HTĐ `->` QKĐ : S + Ved / V2

`-` HTĐ `->` QKĐ ( ĐT Tobe ) : S + was / were + adj / n

`4`.Mai asked Ba what he was doing at present

`5`.He asked her how much rice she could eat a day

`6`.He asked us where our family had spent summer vacation

`7`.Ba asked Lan why he always got to school late

`8`.Nam asked them how much they spent on clothes every month

`9`.I asked Mai what her favourite music was

`10`.I asked Ba who he was working with those days