[ 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
Random Topics:
Past form of ModalsModal Verbs & Time PrepositionsLinking Words & PhrasesNoun, Adjective, and Adverb ClausesGrammar Comma UsageHave vs. HasCan, Could, May, MightInfinitiveBe Going To vs. WillVerbs + Gerund or InfinitiveOther quiz:
Tenses › ViewI called you last night after dinner, but you _______ there. Where were you?
A. are not
B. were not
C. had not been
D. have not been
Subject Verb Agreement › View
Each boy ___ actively.
A. walk
B. walks
C. walking
D. walked
Correlative Conjunction & Complex Sentences › ViewThis ,,, the end of grammar review for today.
A. are
B. have
C. am
D. is
Vocabulary › View
Replace the word in quotation marks.
My “argument” is that dogs are better than cats.
A. claim
B. contribute
C. conclude
D. infer