Zero and first conditional

(Zero) If you want to come, ...

• call me before 7 o'clock

• call my before 8 o'clock

• called me before 7 o'clock

• calls me before 8 o'clock

(Zero) The teacher gets angry if...

• we aren't work hard

• we doesn't work hard

• we don't work hard

• we won't work hard

(Zero) If you stay up late, you...

• got tired in the morning

• did get tired in the morning

• gets tired in the morning

• get tired in the morning

(Zero) If the weather _____ cold, I put on my sweater.

• is

• be

• are

• will be

(Zero) If a tornado comes, you should...

• stays away from everything

• stay away of your family

• stay away from windows and doors

• stayed away from windows and doors

(Zero) If you _______ to succeed in life, you ________ to work hard.

• plan - are

• want - have

• wish - do

• want - has

(Zero) If you _____ a headache, you usually _______ an aspirin.

• have - take

• do - have

• are - eat

• had - drink

(Zero) If I ___________ enough, I ______ tired.

• don't dance - wake up

• don't eat - will wake up

• have not studied - will feel

• don't sleep - feel

(Zero) If you _____ water to 100 degrees celsius, it _______.

• will melt - boil

• melt - boil

• melt - boils

• melts - boil

(Zero) You don't need to see a doctor if you (a)   a cold.