[ Grammar and Idioms ]
What is the opposite of “mandatory”?
A. Required
B. Optional
C. Necessary
D. Compulsory
Select your answer:

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Comparison & Modal Verbs in Passive VoiceWish / If only ( Present)Possessive Pronouns and Adjective PronounsFuture SimpleConjunctive AdverbWishesGerunds as objects of prepositionPreposition and Word FormPossessive Adjective and PronounConnectives (because, due to, owing to, because of)Other quiz:
Adverbs of Time and Place › ViewWhat adverb is used in the sentence “The book is upstairs.”?
A. Far
B. Downstairs
C. Upstairs
D. Always
Adverbs, Prefixes, and Suffixes › View
What is the function of the adverb in the following sentence: She sings beautifully.
A. To indicate the object of the sentence
B. To connect two independent clauses
C. To emphasize the subject ‘she’
D. To modify the verb ‘sings’
