[ Vocabulary ]
Earthquake waves travel slowly through the hotter parts of the ______ and speed up in colder, denser areas.
A. kinetics
B. mantle
C. lipids
D. latitude

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Present Perfect, Present Simple, Present ContinuousToo or EnoughTravel VocabularyDegree of ComparisonPast Perfect TenseGrammar RulesWish clauseGrammar - Compound SentencesSimple Future Tensemust/shouldOther quiz:
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_____of these books have you read?
A. What
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We had __ great time at the party last night!
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