[ Vocabulary ]
Any substance that cannot be decomposed into simpler substances by ordinary chemical processes
A. atom
B. element
C. compound
D. molecule

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First Conditional & Future TensesSocial Media VocabularyVocabullary TestModals and Modal PerfectsPast Simple or Past ContinuousPresent Perfect Simple vs ContinuousFigure of SpeechModals for Ability, Possibility and PermissionSome & AnyConditionals (0 - 1 - 2)Other quiz:
Past Participle › ViewThe chapters were taught by the professor this morning will be on next week’s exam.
A. True
B. False
Vocabulary and Grammar › View
. How does the author persuade readers that they shouldn’t be afraid of comets?
A. explaining that they often crash to Earth
B. giving evidence about why they are mysterious
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If Conditionals › ViewIf you ____ your homework, your teacher ____ angry with you.
A. don’t do / gets
B. do / getting
C. won’t do / get
D. don’t do / won’t get
Vocabulary › View
Your idea isn’t good so I ……………….…. it.
A. protect
B. reject
C. elect
D. select
