1. An elderly couple sheltered her
→ She was sheltered by an elderly couple.
⇒ câu bị động thì QKĐ: S + was/were + V3/ed + (by+O)
2. She usually does nothing.
→ Nothing is usually done by her.
⇒ câu bị động thì HTĐ: S + is/am/are + V3/ed + (by+O)
3 Are they typing the letter ?
→ Is the letter being typed?
⇒ câu bị động thì HTTD: S + is/am/are + being + V3/ed + (by+O)
@ $quynhly$