[ Vocabulary ]
a process in which one or more substances are converted to one or more different substances
A. conservation of matter
B. closed system
C. chemical reaction
D. reactant
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Too or EnoughTransitional WordsPast Tense (Regular and Irregular)Articles and DemonstrativesPassive and Active VoicePresent Progressive or Present SimpleTenses - Present and PastStative Verbs and TensesAdjectives, Adverbs, and PrepositionsRelative Clauses & Real ConditionalsOther quiz:
Vocabulary › ViewIn or with a group is called?
A. Friend
B. Family
C. Together
Grammar › View
The hotel ____ we stayed at was very comfortable and clean.
A. who
B. which
C. whose
Vocabulary › Viewto ask questions, examine by questioning
A. interrogate
B. trivial
C. vicious
D. truce
Grammar › View
What are the four principal parts of a verb?
A. Infinitive, present participle, past, past participle
B. Infinitive, present, future, past
C. Present, past, future, past participle
D. Infinitive, present, past, future participle