`1`.Where was the cup placed ?

`\rightarrow` Câu bị động - Thì QKĐ : `\text{S + was / were + V3 / PII ( by O )}`

`2`.Were you invited to this party ?

`\rightarrow` Câu bị động - Thì QKĐ : `\text{S + was / were + V3 / PII ( by O )}`

`3`.Has the microwave been turned on ?

`\rightarrow` Câu bị động - Thì HTHT : `\text{S + have / has + been + V3 / PII ( by O )}`

`4`.Will this product be bought ?

`\rightarrow` Câu bị động - Thì TLĐ : `\text{S + will be + V3 / PII ( by O )}`

`5`.Is this computer being sold ?

`\rightarrow` Câu bị động - Thì HTTD : `\text{S + is,am,are + being + V3 / PII ( by O )}`

`\text{@ TheFox}`

$*$ Nếu đề là chuyển sang câu bị động:

$1.$ Where was the cup placed?

- Câu bị động thì quá khứ đơn: S + was/ were + (not) + V (P_II) + (by O).

$(+)$ S + was/ were + V (P_II) + (by O).

$(-)$ S + was/ were + not + V (P_II) + (by O).

$(?)$ Was/ Were + S + V (P_II) + (by O)?

$2.$ Was you invited to the party?

- Tương tự câu $1$ ạ.

$3.$ Has the microwave been turned on by you?

- Câu bị động thì hiện tại hoàn thành: S + have/ has + been + V (P_II) + (by O).

$(+)$ S + have/ has + been + V (P_II) + (by O).

$(-)$ S + have/ has + not + been + V (P_II) + (by O).

$(?)$ Have/ Has + S + been + V (P_II) + (by O)?

$4.$ Will this product be bought?

- Câu bị động thì tương lai đơn: S + will + be + V (P_II) + (by O).

$(+)$ S + will + be + V (P_II) + (by O).

$(-)$ S + will + not + be + V (P_II) + (by O).

$(?)$ Will + S + be + V (P_II) + (by O) $+?$.

$5.$ Is this computer being sold?

- Câu bị động thì hiện tại tiếp diễn: S + am/ is/ are + (not) + being + V (P_II) + (by O).