Meaning: "complex" means not simple, having many parts or steps.

Wrong options:

• simple: "simple" is the opposite. The sentence needs a word meaning not simple.

Correct answer: new

Explanation: Here you hear "undergo new training". It comes before "training", so you need a word for recent.

Meaning: "new" means not old, recent or just started.

Wrong options:

• nu: It has "u" where the word has "ew". Check the letters: "new". A small spelling mistake loses the mark.

Correct answer: operate

Explanation: The speaker says "training to operate the". After "to" you need an action word.

Meaning: "operate" means to use or control a machine or system.

Wrong options:

• operat: It leaves out the "e". Write "operate". Only the exact spelling gets the mark.
• operator: "operator" is a close word, but it ends in "or". The speaker says "operate", which ends in "e".

Correct answer: precision

Explanation: You hear "enhanced precision and control". It comes after "enhanced", so you need a word for accuracy.

Meaning: "precision" means exactness, careful and accurate work.

Wrong options:

• precison: It leaves out the "i". Write "precision". Only the exact spelling gets the mark.