1) A strong wind _____ (blow) since last night.

2) I shall tell him about the incident when he _____ (ring).

3) I _____ (do) it before you tell.

4) I _____ (receive) your leter yesterday.

5) He _____ (visit) the temple everyday.

6) The accident _____ (occur) at 10:30 this morning.

7) They _____ (sing) when we reached there.

8) We _____ (leave) the hall before they came.

9) The carpenter _____ (work) for the last three hours.​