`1`.She had a bad headache yesterday , so she stayed at home

`\rightarrow` Thì QKĐ : S + Ved / V2

`\rightarrow` Đặc điểm nhận dạng : yesterday

`2`.You should take a rest and eat healthy food

`\rightarrow` S + should / shouldn't + V : Nên / Không nên làm gì

`3`.Will your mother take you to the dentist after your school ?

`\rightarrow` Thì TLĐ ( CNV ) : Will + S + V ?

`4`.She had a bad cold , so she didn't go to school

`\rightarrow` Thì QKĐ : S + Ved / V2

`\rightarrow` Thì QKĐ ( CPĐ ) : S + didn't + V

`5`.He shouldn't eat lots of sweets because they are bad for his teeth

`\rightarrow` S + should / shouldn't + V : Nên / Không nên làm gì

`\rightarrow` Because dùng để chỉ nguyên nhân hoặc lý do

`6`.What does your mother do in her free time ?

`\rightarrow` Thì HTĐ ( CNV ) : Do / Does + S + V ?

`7`.Was your brother at the karate club yesterday ?

`\rightarrow` Thì QKĐ ( ĐT Tobe - CNV ) : Was / Were + S + adj / n ?

`\rightarrow` Đặc điểm nhận dạng : yesterday

`\text{@ TheFox}`