[ Vocabulary ]
A ______________ is a change in a substance that does not involve a change in the identity of the substance.
A. temperature change
B. physical change
C. chemical change
D. identity change
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Simple and Past TensesAdjectives and PronounsFigurative LanguageGrammar - much, many, a lot ofZero Conditional SentenceModals for ObligationTenses and QuestionsPresent ContinuousSimple vs Continuous Past TenseQuestion tag and + - AgreementOther quiz:
Grammar › ViewWe _____ for about 20 minutes when the plane was hit by turbulence.
A. flew
B. were flying
C. had flown
D. had been flying
Grammar › View
____________ playing the guitar?
A. Who’s
B. Whose
C. Who
Prepositions › ViewAre you going to do anything special ___ your birthday?
A. at
B. in
C. on
Past Tenses › View
Mr. Lee ______ his house two months ago.
A. have sold
B. sold