[ Grammar ]
Which of the following is an uncountable noun?
A. sand
B. water
C. air
D. sugar

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Gerund, Participle, Infinitive, or AppositiveAdjectives & QuantifiersSubordinating ConjunctionsSubordinating Conjunctions and ClausesModal Verbs & Time PrepositionsConditionals 1,2,3Past simple - Irregular VerbsContrastive ConjunctionComplex SentencesReported SpeechOther quiz:
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a. pain
b. pane
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computer
A. Concrete
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