`7`. Even though the sign was right in front of Phong, he didn't notice it.

`-` Even though / Although / Though + S + V : mặc dù (chỉ sự tương phản)

`8`. They said that they were busy those days.

`-` Câu tường thuật dạng kể : S + said ( to O ) / told O + that + S + V (lùi thì)

`-` HTD `->` QKD

`-` these `->` those

`9`. The girl wanted to know if the bus station was far away.

`-` Câu tường thuật dạng Yes/No-Ques : S + wanted to know + if/whether + S + V (lùi thì)

`-` HTD `->` QKD

`10`. I asked him how long he was going to stay.

`-` Câu tường thuật dạng Wh-word : S + asked O + Wh-word + S + V (lùi thì)

`-` is/am/are going to `->` was/were going to