[ Vocabulary ]
What is a “laboratory”?
A. A place where animals live
B. A place where scientific experiments are carried out
C. A kind of machine
D. A type of food

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Past Perfect TensePast Future TensesPast Simple TenseSimple TensesAntonymsHow much and how manyConjunctions, Interjections and Sentence TypeDeterminers & QuantifiersModals for Advice, Obligation/Prohibition, Necessity and Lack of NecessityEnglish for TourismOther quiz:
Grammar › View… CEO and CFO are authorized to sign check over $10000
A. Each
B. Either
C. Both
D. Whoever
Possessive Adjective and Pronoun › View
The blue car isn’t my sister’s car. The green one is _______ car
A. her
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A. this
B. that
C. those
D. these
Past Continuous Tense & Past Modals › View
The students were talking when the teacher … the class
A. was entering
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