[ Vocabulary ]
the value of an attribute, or quality, being studied can change from one person or thing to another.
A. sample
B. data
C. survey
D. variability
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Grammar › ViewMr Thompson is on a business ………. and won’t be back till the end of the weak.
A. journey
B. travel
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D. trip
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Tim is the class monitor, _______________ he?
A. is
B. was
C. isn’t
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Conditionals 1,2,3 › ViewIf I have more time, I (learn) to play the guitar in the future.
A. learned
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C. will learn
D. learn
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Linda took care of her sister _____ her parents were not at home.
A. so
B. and
C. because
D. but