Choose the suitable option to complete the sentence 1. The English grammar point is explained/was explained by our teacher yesterday. 2. How many houses are destroyed/were destroyed by the storm last night? 3. The school was moved/moved to the higher area. 4. My father is watered/waters this flower every morning. 5. Harvard University was founded/is founded in 1636

` 1 ` : was explained

` -` Bị động quá khứ đơn : S + was / were + ` V3 `+  by + O

`- ` Dấu hiệu nhận biết : yesterday

` 2 ` : were destroyed

`- ` Bị động quá khứ đơn dạng nghi vấn : Were / Was + S + `V3 `+ by + O ?

`- ` Dấu hiệu nhận biết : last night

`3 ` : was moved

` -` Bị động quá khứ đơn : S + was / were + ` V3 `+  by + O

` 4 ` : waters

` -` Câu chủ động thì hiện tại đơn : S + Vs/es

` - ` Dấu hiệu nhận biết : every morning

` 5 ` : was founded

` -` Bị động quá khứ đơn : S + was / were + ` V3 `+  by + O

`- ` Dấu hiệu nhận biết : in 1636