1 mr Dave taught us English last year ( using the passive voice) 2 I received your letter _two days ago_(making a question for the underlined words) 3 She has written a letter to me serveral time(using the passive voice)

1. English was taught to us by Mr. Dave last year.

2. When did you receive my letter?

3. A letter has been written to me several time.

1 mr Dave taught us English last year ( using the passive voice)

⇒we were taught english by mr dave last year 

2 I received your letter _two days ago_(making a question for the underlined words)

⇒when did you receive my letter?

3 She has written a letter to me serveral time(using the passive voice)

⇒a letter has been written to me several times by her