[ Grammar ]
You _________________ worked so long and hard on the project.
A. was
B. are
C. have
D. were

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Subject Verb Agreement and Coordinating ConjunctionsQuantifiers and ArticlesArticle the or zero article (-)Present Simple VS ContinuousPresent and Future TensesAdjectives with -ED and -INGThe First Conditional SentenceAdjectives, Adverbs, and PrepositionsPresent Simple with Adverbs of FrequencySimple Present and Present ContinuousOther quiz:
Narrative Tenses › ViewSteve …………………………….an accident yesterday.
A. had
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This time next month, Lucy ________ the year-end party with her colleagues.
A. has celebrated
B. had celebrated
C. was celebrating
D. will be celebrating