'While' and 'When'

Brian was playing football with his friends __________ it suddenly rained heavily.

• while

• when

Sarah was watching a movie at the cinema __________ her phone rang.

• while

• when

Dad was cooking dinner __________ Mum was setting the table.

• while

• when

Sarah was doing her homework __________ her cat jumped onto her lap.

• while

• when

Chef Gordon was making Buffalo wings __________ Chef Jamie was baking a cheesecake.

• while

• when

Mum was doing the dishes __________ Dad was sweeping the floor.

• while

• when

I was jogging at the park __________ I ran into my teacher.

• while

• when

Mr Chan was talking to Class 5B __________ Jack raised his hand.

• while

• when

My family and I were at Ocean Park today. Dad and I were riding the rollercoaster __________ Mum was taking pictures of the pandas.

• while

• when

I was studying at the library __________ all the lights suddenly went off.

• while

• when