A young man ...... (walk) down the street when he suddenly ...... (fall) into a deep hole.

The studious girl ...... (read) her book on physics when she ...... (trip) on the pavement.

The doctor ...... (examine) a patient when he ...... (suffer) a massive heart attack.

The boys ...... (ride) their bicycles when they ...... (have) the accident.

We ...... (talk) on the phone when I ...... (hear) about the crash on the radio.

The teacher ...... (not/see) me come into the classroom because he ...... (be) turned with his back to the class.

Ms Watson ...... (recite) poetry when one of the students ...... (burp).

The mother ...... (not/hear) the phone because she ...... (have) a shower then.

The staff ...... (talk) about their boss when suddenly she ...... (come) from round the corner.

The mountain rescue party ...... (climb) down a mountain when an avalanche ...... (fall) down and ...... (bury) the whole valley.

The girls ...... (have) so much fun at the party that they ...... (decide) to stay a bit longer.

Ms Matthews ...... (print) out the contract when the power in the whole building ...... (go) out.

When the teacher ...... (arrive), the students ...... (stand) up and ...... (greet) her politely.

When the teacher ...... (arrive), some students ...... (play) cards.

When the manager ...... (come) in, the other staff ...... (go) silent.