WHEN & WHILE

I was having lunch when Hoa_______.

• arrived

• was arriving

• arrive

• not arrive

While I was sleeping, my mom_________.

• was cooking

• cooking

• is cooking

• was being cooked

He was working when I ______ him.

• call

• was calling

• were called

• called

He cut his finger when he_________.

• cooking

• cook

• was cooking

• were cooking

I _______to the door when I heard the doorbell.

• went

• gone

• go

• was going

When I ________Jack, he was with Tim.

• seeing

• seen

• saw

• was seeing

While John _________outside the cinema, someone picked his pocket.

• stood

• was standing

• is standing

• be standing

Nhi ________ into the room when I was sleeping.

• came

• come

• was coming

• is coming

While Minh was studying, he ______to music.

• was listening

• was listened

• listened

• didn't listen

She was walking back to her flat when she suddenly _________an explosion.

• hear

• was hearing

• heard

• had been hearing