Meaning: "transporting" means moving things from one place to another.

Wrong options:

• transportng: It leaves out the "i". Write "transporting". Only the exact spelling gets the mark.
• transportation: "transportation" is a close word, but it ends in "ation". The speaker says "transporting", which ends in "ing".

Correct answer: confirming

Explanation: Listen for "and confirming their operable condition". You need an action word that ends in ing.

Meaning: "confirming" means checking that something is true or working.

Wrong options:

• confrming: It leaves out the "i". Write "confirming". Only the exact spelling gets the mark.
• confirm: "confirm" is missing the ending. The speaker says "confirming", with "ing" at the end.

Correct answer: astronauts

Explanation: On the recording you hear "before the first astronauts even arrive". The phrase wants a word for people who go to space.

Meaning: "astronauts" means people trained to travel in space.

Wrong options:

• astronots: It has "o" where the word has "au". Write "astronauts". Only the exact spelling gets the mark.
• astronaut: "astronaut" has no "s" at the end. The speaker says "astronauts", so write the "s".

Correct answer: replacement

Explanation: Listen again to "as a possible replacement for the U.S". You need a word for a thing that takes the place of another.

Meaning: "replacement" means something that takes the place of another thing.

Wrong options:

• replacment: It leaves out the "e". Check the letters: "replacement". A small spelling mistake loses the mark.
• replace: "replace" is missing the ending. The speaker says "replacement", with "ment" at the end.

Correct answer: diameter

Explanation: Here you hear "would be 27 ft. in diameter and have". The phrase asks for the width across a circle.

Meaning: "diameter" means the straight line across the middle of a circle.

Wrong options:

• diamter: It leaves out the "e". The right spelling is "diameter". Every letter must be correct to get the mark.

Correct answer: inflated

Explanation: The speaker says "protective shell when inflated". The phrase shows it is filled with air, so the word ends in ed.

Meaning: "inflated" means filled with air so it is firm or expanded.

Wrong options:

• inflatted: It adds an extra "t". The right spelling is "inflated". Every letter must be correct to get the mark.
• inflating: "inflating" is a close word, but it ends in "ing". The speaker says "inflated", which ends in "ed".

Correct answer: insulation

Explanation: You hear "would also provide insulation from the". Here you want a word for material that keeps heat in or out.

Meaning: "insulation" means material that stops heat or cold passing through.

Wrong options:

• insullation: It adds an extra "l". Check the letters: "insulation". A small spelling mistake loses the mark.
• isolation: This means being separate, not material that stops heat flow.

Correct answer: equator

Explanation: Listen for "to 26.6°C at the equator". This asks for the middle line around a planet.

Meaning: "equator" means the imaginary middle line that goes around the Earth or a planet.

Wrong options:

• equater: It has "e" where the word has "o". Write "equator". Only the exact spelling gets the mark.
• equilibrium: This is about balance, not the planet's middle line.