[ Subject Verb Agreement ]
Three ingredients in this spray _______ poisonous.
A. is
B. be
C. are
D. was

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Modals and InversionVocabulary and PrepositionsWill and Going toWord Form & Verb TensePrepositions - ConjunctionsQuestion Tags in Verb TensesNoun, Adjective, and Adverb ClausesSimple and Progressive Verb TensesPresent Perfect, Present Simple, Present ContinuousVocabulary and ModalsOther quiz:
Grammar › ViewYou are working late again. You ___________ overtime for 3 weeks.
A. has worked
B. have worked
C. working
D. work
Contrast Linking Words › View
in spite of + _________
A. noun
B. subject + verb
Tenses › ViewTim ______________ (do) his homework before he went to bed.
A. have done
B. has done
C. had done
D. do
Grammar › View
Hoa (water) ___________ the flowers now.
A. is watering
B. waters
C. water
D. has watered