Opaque = not able to be seen through; not transparent.

Translucent = (of a substance) allowing light, but not detailed shapes, to pass through; semi-transparent.

Transparent = (of a material or article) allowing light to pass through so that objects behind can be distinctly seen.

Crystal = a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.

Hence, option A is the correct answer.

Copy = a thing made to be similar or identical to another.

Mimic = imitate (someone or their actions or words), especially in order to entertain or ridicule.

Repeat = do (something) again or more than once.

Duplicate = exactly like something else, especially through having been copied.

Hence, option B is the correct answer.

Banish = send (someone) away from a country or place as an official punishment.

Expel = officially make (someone) leave a school or other organization.

Dismiss = order or allow to leave; send away.

Exonerate = release someone from (a duty or obligation).

Hence, option D is the correct answer.

Mannequin = a dummy used to display clothes in a shop window.

Supermodel = a successful fashion model who has reached the status of a celebrity.

Statue = a carved or cast figure of a person or animal, especially one that is life-size or larger.

Model = a three-dimensional representation of a person or thing or of a proposed structure, typically on a smaller scale than the original.

Hence, option A is the correct answer.

Decibel = a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.

Scribble = write or draw (something) carelessly or hurriedly.

Hobble = walk in an awkward way, typically because of pain from an injury

Edible = fit or suitable to be eaten.

Hence, option D is the correct answer.

Indebted = owing money.

Exchanged = give something and receive something of the same kind in return.

Loaned = lend (a sum of money or item of property).

Donated = give (money or goods) for a good cause, for example to a charity.

Hence, option A is the correct answer.

Sense = a feeling that something is the case.

Awareness = knowledge or perception of a situation or fact.

Knack = an acquired or natural skill at doing something.

Passion = strong and barely controllable emotion.

Hence, option C is the correct answer.

Invigilator = A person who supervises students during an examination

Detective = a person, especially a police officer, whose occupation is to investigate and solve crimes.

Explorer = a person who explores a new or unfamiliar area.

Inventor = a person who invented a particular process or device or who invents things as an occupation.

Hence, option B is the correct answer.

Elysium = a state of great happiness

Utopia = a perfect society in which people work well with each other and are happy

Eden = in the Bible, the garden where the first humans, Adam and Eve, lived in perfect happiness before they did not obey God and were ordered by him to leave

Arcadia = an image or idea of life in the countryside that is believed to be perfect

Hence, option B is the correct answer.

Draft = a preliminary version of a piece of writing.

Edition = a particular form or version of a published text.

Manuscript = a book, document, or piece of music written by hand rather than typed or printed.

Outline = a general description or plan showing the essential features of something but not the detail.

Hence, option C is the correct answer.