when vs while

I ...... running in the park when I saw my friend.

While Dylan was ...... her class, her phone rang.

What is the interrupting action in this sentence? - I was reading a book when suddenly I heard a noise.

• reading a book

• heard a noise

What is the interrupting action in this sentence? - When Suzie arrived I was completing my homework.

• arrived

• completing homework

Which is the longer action in this sentence? - While I was cycling, the rain started.

• cycling

• rain started

Which is the longer action in this sentence? - Sara fell down while she was skating in the park.

• fell down

• skating

Is this sentence right or wrong? - While I was baking, she was ringing the bell.

Is this sentence right or wrong? - While I was baking, she was ringing the bell.

• While I baked she was ringing the bell.

• While I was baking , she ringed the bell.

• While I was baking , she rang the bell.

• While I was baking she ringed the bell.

Is this sentence right or wrong? - I drove when I saw them.

• I driving when I saw them.

• I was driving when I saw them.

• I was driving , when I saw them.

• I was driving when I see them.

Is this sentence right or wrong? - I drove when I saw them.