6 We were driving along the road when (we/see) a car which (break) down, so (we/stop) to help.

Ответ (EN):

We were driving along the road when we saw a car which had broken down, so we stopped to help.

Перевод (RU):

Мы ехали по дороге, когда увидели машину, которая сломалась, поэтому мы остановились, чтобы помочь.