Grammar Quiz
[ Vocabulary ]

Any substance that cannot be decomposed into simpler substances by ordinary chemical processes

A. atom

B. element

C. compound

D. molecule

Select your answer:
A  B  C  D  E 


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If Conditionals › View

If you ____ your homework, your teacher ____ angry with you.

A. don’t do / gets

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Your idea isn’t good so I ……………….…. it.

A. protect

B. reject

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