`68,` How about going to see comedy for a change?
Why don't we + Vnd?
= How/ What about + V-ing?
`74,` You didn't forget to take a fifteen_minute rest, did you?
Câu hỏi đuôi: vế trước là khẳng định, vế sau là phủ định.
`76,` Mai spent two hours clearing our her room.
S + spend time + V-ing: dành thời gian làm việc gì.
`77.` The test was too difficult for him to do it.
Cấu trúc: S + be + too + adj + (for Sb) + to V: quá với ai để làm gì.
`78.` Who does this motorcycle belong?
Who owns + S?
= Who does/ do + S belong
`->` Chỉ sự sở hữu.