$#Myne$
1. ow / animal / fast / the / is / fastest /?  (từ fast hơi sai đề nên mình bỏ ạ)
` => ` How is the faster animal?  (SS nhất: the adj-est + N)
Dịch : Làm thế nào là con vật nhanh hơn? 

2. didn't / to / yesterday / I / go / school.
` => ` I didn't go to school yesterday.  (QKĐ: phủ định S + didn't/don't'+ V )
Dịch : Tôi không đi học ngày hôm qua.

3. old / Uncle Ho / died / How / when / he / was /? 
` => ` How old was Uncle Ho when he died ?  ( QKĐ nghi vấn )

Dịch : Bác Hồ mất năm bao nhiêu tuổi? 

4. learning / in / They / the / classroom / are. 
` => ` They are learning in the classroom .  (HTTD :S + is/am/are : V_ing )
Dịch : Họ đang học trong lớp. 

=>

1. How fast is the fastest animal?

-> so sánh nhất the adj-est + N

2. I didn't go to school yesterday.

-> yesterday (QKĐ, S didn't V)

3. How old was Uncle Ho when he died?

-> thì QKĐ (đã xảy ra trong quá khứ)

4. They are learning in the classroom.

-> thì HTTD (S is/am/are Ving)