When there is a surplus electricity on the grid, these facilities use that power to pump water from the lower _______ to the higher one.
A. reservoir
B. lake
C. puddle
D. pond

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Grammar: is/are/was/wereGerunds as Objects of PrepositionsVerb ConjugationFigure of SpeechNoun Clauses with THATGrammar and VocabulariesAsking & Giving OpinionFirst Conditional SentencePassive Voice with Modal VerbsTenses and StructureOther quiz:
Grammar › ViewWhich sentence is correct?
A. Emily lives in New York.
B. Emily lives at New York.
C. Emily lives on New York
Vocabulary › View
Ms. Molina has many _______ including dancing and knitting.
A. confidence
B. talents
C. shelter
D. related
Contrastive Conjunctions › ViewWhich phrase is commonly used in spoken English to express contrasting ideas?
A. Though at the end of the second phrase
B. Despite at the beginning of the sentence
C. In spite of at the end of the sentence
D. Although at the start of the sentence
Grammar › View
Complete the sentence.
We were walking around Brooklyn _____ we _____ lost.
A. when, were getting
B. while, got
C. when, got
