Topics: Subject Verb Agreement
Either thunder or lightning flashes (are, is) let out by the sky.
A. are
B. is
Select your answer:

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Conjunctions and CommasPast Simple (Questions)Vocabullary TestCoherent Sentence with Correct Grammar StructureAcademic VocabularyClauses and ConjunctionsPresent Simple vs Present ContinuousComparatives - SuperlativesGrammar Like & Linking VerbKinds of SentencesOther quiz:
Comparative and Superlative Adverbs › ViewI think the _________ holiday I ever had was when I went to Cerro Punta.
A. good
B. better
C. best
Desert vs. Dessert › View
Driving through the … , he brought a lot of water.
(a) desert
(b) dessert
