If I were you...

Tom won't call you ... you give him yoiur phone number.

• in case

• unless

Take a jacket with you ... it gets cold later on.

• unless

• in case

Be sure to ask for a receipt ... you need it later.

• unless

• in case

... fire, press the red button.

• In case of

• Unless

Dad won't lend you his car ... you promise to drive carefully.

• in case

• unless

The alarm won't work ... you turn it on.

• unless

• in case

It's always a good idea to have a second key somewhere ... you lose the first one.

• in case

• unless

Here's the number to call ... emergency.

• unless

• in case of

Take your vaccination certificate with you ... they ask for it at the airport.

• unless

• in case

I'll see you at the meeting next week ... it's cancelled before then.

• in case

• unless