[ Vocabulary ]
a group of related plants or animals
A. composition
B. class
C. characteristic
D. vary

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Article the or zero article (-)Conditional Sentences Type 1Correlative Conjunction & Complex SentencesGerunds as objects of prepositionGrammar: MorphologyPresent Simple, Present Continuous or Present PerfectSimple Past ContinuosDo not or Does notConjunctions and Sequence ConnectorsAdjectives and comparisonsOther quiz:
Conjunctions › ViewIdentify the kind of the underlined noun in the sentence below.
A herd of elephants was moving towards the lake.
A. Special Noun
B. Compound Noun
C. Foreign Noun
D. Collective Noun
Grammar › View
………………… (you, lock, always) the door to your apartment when you leave?
A. Does you always lock
B. Do you always lock
C. Do you lock always
D. Does you locking always