Раздел 7 Find and correct the mistake in each sentence.

1.I started running when I was seeing the bus..

2.Our team was winning the trophy in the competition last week..

3.While Karen fell off the horse, it was jumping over a fence..

4.The players was walking onto the court when the rain began..

5.George felt a pain in his leg while he swims in the lake..

вроде легко но у меня почему то не получается