drug and alcohol test! need help?

keep getting 88% on the test and i need 100% to continue on with my course!

1. alcohol can pass directly into the bloodstream from mouth or stomach.

True or false?

My answer: true.

2. alcohol is colorless,odorless, volatile pungent drug that acts as:

My answer: depressant

3: the front lobe of the brain is _______ for driving a motor vehicle.

my answer: not necessary

4:Narcotics act on central nervous system by producing a ______ effect.

my answer: soothing, lulling, and dulling.

5. the most dangerous aspect of synergism is ______ affect.

my answer: additive

6.The amount of ethyl alcohol in a 12oz beer a 5 oz glass of wine or a 1.5 oz shot of 80 proof whiskey are:

my answer : the same.

7.drugs of addiction act upon a portion of the brain called the limbic system.

my answer: true

8.prescription drugs can impair your ability drive.

true.

9.your judgment is affected by your emotions.

my answer: false.

i dont know which one i got wrong!!! can you please help me!!!!!