[ Grammar ]
Daniel visits the Louvre Museum once in a blue moon. This idiom means …
A. rare
B. expensive
C. heavy
D. wet

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Verb FormClauses and GerundsEssential and Nonessential ClausesVerbs: Action, Linking, and HelpingCommas and Subordinating ConjunctionsTo Infinitive or GerundConditionalsArticles and DemonstrativesProgressive Verb TensesPresent Simple ProgressiveOther quiz:
Mixed General Quiz › ViewA large portion of New Orleans, ___ largest city, lies below sea level.
a. Louisianas
b. Louisiana’s
c. louisiana’s
Grammar › View
The annual street art competition, now __ its 10th year, will take place this weekend.
A. reaches
B. reaching
C. will reach
D. has reached