[ Grammar ]
A microscope is an instrument ________________ is used to magnify objects. Which word best completes the sentence?
A. that
B. who
C. whose
D. which

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Some & Anytoo / enoughParallelism and Subject Verb AgreementSimple Future - WillAbilityGrammar Present Perfect (ever never)as...as, comparatives, superlativesAdverbial ClauseNoun ClausesConjunctive AdverbsOther quiz:
Modal Verbs › View. What is the purpose of using “Should/Ought to/Had better (not)” ?
A. For Advice
B. For Necessity
C. For Ability
D. For Polite Requests
Grammar: was/were › View
The dogs ______ barking at the strangers.
A. was
B. were