[ Grammar ]
Scientists have conducted ______ research to find a cure for the disease.
A. a number of
B. many
C. a lot of
D. a few
Select your answer:
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Kinds of NounsSo, Such, Many, MuchDefinite ArticlesVerb Tenses and SubordinatesPrepositions and Phrasal VerbsIntensifiers: Really vs VeryAdverbs, Prefixes, and SuffixesSimple and Compound SentencesArticles and DeterminersAdjectiveOther quiz:
Past Tenses › ViewIdentify the past continuous tense in the sentence: ‘I was reading a book when the phone rang.’
A. reading
B. readed
C. was reading
D. were reading
Grammar › View
What would happen if somebody_______ that button?
A. had pressed
B. presses
C. press
D. pressed