English teacher giving lesson on prepositions of time near whiteboard in classroom
Palabras clave
person,
male,
man,
background,
caucasian,
adult,
classroom,
academic,
basic,
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college,
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education,
english,
foreign,
grammar,
international,
cognition,
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lesson,
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instructor,
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instructing,
university,
teacher,
tutor,
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time,
whiteboard,
explaining,
information,
notebook,
young,
wall,
white,
text,
giving,
theme,
topic,
usage,
indoor
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