Meaning: "physicians" means doctors.

Wrong options:

• physcians: It leaves out the "i". Write "physicians". Only the exact spelling gets the mark.
• physician: "physician" has no "s" at the end. The speaker says "physicians", so write the "s".

Correct answer: expertise

Explanation: Here you hear "the actual expertise or". It comes after "the actual", so you need a word for a thing.

Meaning: "expertise" means special knowledge or skill in a field.

Wrong options:

• expertize: It has "z" where the word has "s". Check the letters: "expertise". A small spelling mistake loses the mark.
• experience: Experience is what happened to you, not the specific skill.

Correct answer: determining

Explanation: The speaker says "accurate in determining what". You need an action word that ends in ing.

Meaning: "determining" means finding out or working out what is true.

Wrong options:

• determing: It leaves out the "in". Check the letters: "determining". A small spelling mistake loses the mark.
• deciding: Deciding means choosing, not finding a medical cause.

Correct answer: preliminary

Explanation: You hear "preliminary research suggests". It comes before research, so you need a describing word that ends in ary.

Meaning: "preliminary" means early or first, before the main work.

Wrong options:

• prelimary: It leaves out the "in". Write "preliminary". Only the exact spelling gets the mark.
• primary: Primary means main, not early or first.

Correct answer: untrained

Explanation: Listen for "some untrained humans". It comes before humans, so you need a describing word that ends in ed.

Meaning: "untrained" means without training or formal instruction.

Wrong options:

• untrined: It leaves out the "a". Write "untrained". Only the exact spelling gets the mark.
• trained: Trained means the opposite, it has skill or instruction.