`1`.was play `\rightarrow` was playing

`\rightarrow` Thì QKTD : S + was / were + V-ing

`2`.Was you study `\rightarrow` Was you studying

`\rightarrow` Thì QKTD ( CNV ) : Was / Were + S + V-ing ?

`\rightarrow` Đặc điểm nhận dạng : at 5 p.m yesterday

`3`.was she do `\rightarrow` was she doing

`\rightarrow` Thì QKTD ( CNV ) : Was / Were + S + V-ing ?

`\rightarrow` While dùng để miêu tả 2 hành động đang xảy ra trong quá khứ

`4`.did you went `\rightarrow` did you go

`\rightarrow` Thì QKĐ ( CNV ) : Did + S + V ?

`\rightarrow` Đặc điểm nhận dạng : last

`5`.cooked `\rightarrow` was cooking

`\rightarrow` Thì QKTD : S + was / were + V-ing

`\text{@ TheFox}`

1. I was play football when she called me. →was playing

2. Was you study Math at 5 p.m. yesterday? →Did you

3. What was she do while her mother was making lunch? →did she

4. Where did you went last Sunday? →go

5. When he came home, his mom cooked dinner. →was cooking