【C2】A．causesB．casesC．factorsD．proofs

On formal __________, people pay more attention to manners.A、situationsB、casesC、conditi

A．wordsB．casesC．termsD．places

【C16】A．sensesB．casesC．wordsD．means

Have you got all the ______ for a fruit salad？A．componentsB．elementsC．factorsD．ingredients

A．DetailsB．CommoditiesC．FactorsD．Exhibits

【C3】A．timesB．casesC．examplesD．places