[ Grammar ]
They __________ a lot of effort into the project.
A. did
B. made
C. put
D. done

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Linking Verbs & Helping VerbsSimple Verb TensesModal Verbs and Gender NounsState Verbs and Action VerbsModals, Phrasal Verbs, Gerunds and InfinitivesArticles with SubstancesGrammar - to beGrammar SuffixesAuxiliary Verbs (be, do, have)Sentences Function and StructureOther quiz:
Home vs. House › ViewHe regularly stays at someone’s …
a. home
b. house
Vocabulary › View
something that a person should do because it is the right thing to do
A. pursue
B. establish
C. responsibility
