Answer: A) Obvious but unnoticed.
Explanation for this question is being written.
Answer: A) Like water off a duck's back.
Answer: C) Mouth
Answer: A) Nervous
Answer: B) Closing the eyes when tired.
Answer: A) Neck
Answer: A) Hit the sack.
Answer: B) To learn how to do specific tasks or activities in a company.
Answer: B) She said something embarrassing.
Answer: A) Compound
Answer: B) Tip
Answer: A) Hands
Answer: A) Idiom
Answer: D) Eyes
Answer: A) Don't get involved in too many things at once.
Answer: A) Shadow
Answer: B) Lungs
Answer: A) In
Answer: A) Grips
Answer: C) Leg
Answer: A) True
Answer: A) The shirt was really expensive.
Answer: D) His knuckle.
Answer: A) To almost remember something.
Answer: A) Sudden, without much reflection.
Answer: A) Angry
Answer: C) Head on a platter.
Answer: A) Treat badly.
Answer: A) In the act of doing something wrong.
Answer: A) Let someone go without punishment or responsibility.
Answer: B) From memory.
Answer: B) Almost worn out.
Answer: A) Work excessively hard.
Answer: D) They agree with each other.
Answer: A) To speak about some something without thinking in detail or checking facts.
Answer: C) Toes
Answer: A) Heart
Answer: A) Tooth
Answer: A) To kick the bucket.
Answer: C) A phraseological fusion.
Answer: B) Fell on deaf ears.
Answer: C) Very aware of what's around you.
Answer: A) A on a limb.
Answer: B) Clever.
Answer: A) Costs an arm and a leg.
Answer: A) Footsteps
Answer: C) As it were.
Answer: A) No longer able to deal with a bad situation.
Answer: B) He is a thief.
Answer: B) Cost an arm and a leg.
Answer: A) By heart.
Answer: A) Your arm.
Answer: C) Keep my ear to the ground.
Answer: B) Difficult person.
Answer: C) Vote on an idea by raising your hand if you agree.
Answer: C) To be involved in something.
Answer: B) The thumb and index finger are protruding, the rest are bent.
Answer: B) Those are really expensive.
Answer: D) To stay firm in beliefs.
Answer: A) Back/hand