A.I. Explanation:

Correct answer: using

Explanation: The word 'using' is a gerund that functions as a noun in this context, indicating the method by which one can disguise the shape of their face. It fits grammatically as it follows the preposition 'by,' which requires a gerund form.

Meaning: Using refers to the act of employing something for a purpose, in this case, employing blushers and foundations.

Wrong options:

• contended: 'Contended' is a past tense verb meaning to assert or argue, which does not fit the grammatical structure required after 'by.'
• have: 'Have' is a verb that does not fit after 'by' as it does not indicate a method or process.
• from: 'From' is a preposition that indicates a starting point but does not convey the action of employing a method.
• form: 'Form' is a noun that does not fit grammatically after 'by' as it does not indicate an action or method.
• since: 'Since' is a conjunction or preposition that indicates time, which does not fit the context of describing a method.
• rare: 'Rare' is an adjective that describes something uncommon, which does not fit the grammatical structure needed after 'by.'

Correct answer: since

Explanation: The word 'since' is a conjunction that indicates a time relationship, showing that the advice has been present from the time these products were invented. It fits grammatically and contextually as it connects the two clauses effectively.

Meaning: Since refers to a point in time from which something has continued, in this case, the advice on disguising face shapes.

Wrong options:

• contended: 'Contended' is a past tense verb that does not fit in this context as it does not indicate a time relationship.
• have: 'Have' is a verb that does not convey a temporal relationship and does not fit grammatically in this context.
• expect: 'Expect' is a verb that indicates anticipation, which does not relate to the time frame of the advice being given.
• from: 'From' is a preposition that indicates a starting point but does not connect the clauses as needed here.
• form: 'Form' is a noun that does not fit grammatically or contextually in this sentence.
• using: 'Using' is a gerund that describes an action but does not indicate a time relationship, making it unsuitable here.

Correct answer: form

Explanation: The word 'form' is a noun that indicates the shape or structure of something. In this context, it refers to the type of hope that appeared, fitting grammatically and contextually as it describes the nature of the hope.

Meaning: Form refers to the shape or structure of something, in this case, the hope that appeared in the context of cosmetic surgery.

Wrong options:

• contended: 'Contended' is a past tense verb that does not fit as it does not describe a type or nature of hope.
• have: 'Have' is a verb that does not fit grammatically as it does not describe a noun or type of hope.
• expect: 'Expect' is a verb that indicates anticipation and does not fit as a noun describing hope.
• from: 'From' is a preposition that does not fit grammatically or contextually as it does not describe a type of hope.
• since: 'Since' is a conjunction or preposition that does not fit as it does not describe a noun or type of hope.
• using: 'Using' is a gerund that does not fit as it does not describe a noun or type of hope.

Correct answer: expect

Explanation: The word 'expect' is a verb that indicates anticipation or belief about a future event. It fits grammatically as it follows 'not to,' which requires a verb in the base form.

Meaning: Expect means to anticipate or look forward to something happening, in this case, the transformation of their lives.

Wrong options:

• contended: 'Contended' is a past tense verb that does not fit after 'not to' as it does not convey the intended meaning of anticipation.
• have: 'Have' is a verb that does not fit after 'not to' as it does not express anticipation or belief about a future event.
• from: 'From' is a preposition that does not fit grammatically or contextually in this sentence.
• form: 'Form' is a noun that does not fit after 'not to' as it does not convey an action or anticipation.
• since: 'Since' is a conjunction or preposition that does not fit as it does not express anticipation or belief.
• using: 'Using' is a gerund that does not fit after 'not to' as it does not convey the intended meaning of anticipation.

Correct answer: have

Explanation: The word 'have' is a verb that fits grammatically in this context as it follows the subject 'they' and indicates the action of undergoing a procedure. It is in the base form, which is required after 'they.'

Meaning: Have means to undergo or possess something, in this case, the action of having their noses remodelled or ears tucked back.

Wrong options:

• contended: 'Contended' is a past tense verb that does not fit as it does not match the grammatical structure required after 'they.'
• expect: 'Expect' is a verb that does not fit in this context as it does not indicate an action related to undergoing a procedure.
• from: 'From' is a preposition that does not fit grammatically or contextually in this sentence.
• form: 'Form' is a noun that does not fit after 'they' as it does not convey an action.
• since: 'Since' is a conjunction or preposition that does not fit as it does not indicate an action related to undergoing a procedure.
• using: 'Using' is a gerund that does not fit after 'they' as it does not convey an action.