[ Grammar ]
Andrew didn’t have any difficulty on the dangerous slopes since he ___ for years.
A. had skied
B. had been skiing
C. skied
Select your answer:
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Vocabulary › ViewData for which each piece of data fits into exactly one of several different groups or categories.
A. quantitative data
B. categorical data
C. statistical question
D. observational study
Grammar › View
Excuse me, _______ to you?
A. is this pen belonging
B. does this pen belonged
C. does this pen belong