Выбрать правильную форму глагола-сказуемого
1)She frightened when she saw his cut. She (saw/had seen) blood many times before.
2) When he (saw/had seen) her come through the door, he jumped up in surprise.
3) While he (rode/was riding) in the forest he lost/was losing his way.
4) When I (arrived/was arriving) the party was in full swing. Paul (danced/was dancing) with Mary, and Pat and Peter (drank/were drinking) champagne.