B1+ 8A Grammar First Conditional

I think we should get a fire extinguisher _________ it cathes fire.

• in case
• unless
• even if

______ you clean your room in 15 minutes, you won't be able to go out because you are punished.

• in case
• unless
• even if
• if

We all will melt ______ you open that window.

• in case
• unless
• even if
• if

______ we take stricter measures, maybe then we can protect our environment.

• in case
• if
• unless
• even if

Ali ______ talk to the teacher about his exam grades, if he wants to pass.

• unless
• in case
• should
• if

______ Seher wins this match, she won't get any medals.

• unless
• in case
• even if
• if

The boardmeeting can be cancelled ______ the CEO shows up in ten minutes. <br />

• should
• unless
• in case
• even if

We ______ not pollute our environment if we want to have a clean world.

• should
• in case
• if
• even if

We will run out of sources ______ we do not find alternatives.

• should
• in case
• if
• even if

all our savings will be lost ______ we find a better way to invest our money.

• in case
• unless
• even if
• if