Question 34: Lenses, ________ , are used to correct imperfections in vision.
– Use noun phrases (synonyms of nouns)/prepositional phrases to shorten a relative clause when the clause has the form:
S + to be + noun/noun phrase/prepositional phrase
Eg: Football, which is a popular sport, is very good for health.
→ Football, a popular sport, is very good for health.
Do you like the book which is on the table?
→ Do you like tho book on the table.
=> Answer B (Lens, in the form of glasses and contact lenses, are used to correct vision defects)
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