IF or UNLESS (class 9)

_____ you do not finish the job in time, you'll be sacked.

• If

• Unless

I will take the job _________ the salary is too low.

• unless

• if

_____ you smoke like this, you will be seriously ill.

• If

• Unless

I will be back tomorrow ________ there is a plane strike.

• if

• unless

Let's go for a walk - _______ you are too tired.

• unless

• if

I will be surprised ______ he doesn't have an accident soon.

• unless

• if

Jane will be very upset _____ I don't get back tomorrow.

• if

• unless

______ you give me the keys of the safe, I will not be able to protect you.

• Unless

• If

_____ you don't stop making that stupid noise, I will throw you out of my room.

• Unless

• If

I won't be able to solve this problem _______ you help me.

• if

• unless