When is it correct to omit articles before nouns?
A. When referring to general or abstract concepts, uncountable nouns, and plural nouns.
B. When the noun is the subject of the sentence
C. When referring to specific or singular nouns
D. When using nouns in a sentence

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Conditional SentenceConditionals 1,2,3Coordinating Conjunctions and Comparative AdjectivesModal Verbs of PermissionCorrelative Conjunction & Complex SentencesSimple Present and Present ContinuousUse of Prepositions or ConjunctionsArgumentative VocabularyAdverb of Frequency and TensesTenses and Time MarkersOther quiz:
Grammar and Vocabulary › View. Are you worried _____ the interview tomorrow?
A. about
B. of
C. for
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Which words are abstract nouns? We could hear the ambulance sirens in the distance.
A. We, ambulance, sirens
B. distance
C. ambulance, we, sirens
D. sirens, distance
Tenses of Verbs - Usage › ViewChoose the correct Structure of the Present Perfect tense
A. Subject + have/has + past participle
B. Subject + will + past participle
C. Subject + had + past participle
D. Subject + have/has + base form verb
Gerund, Infinitive & Modals › View
It’s very difficult ____ in this company.
A. promote
B. to promote
C. promoted
D. to get promoted
E. promo
