[ Present Perfect Continuous Tense ]
They … anything for the past hour.
A. haven’t been doing
B. hasn’t been doing
Random Topics:
SciencePast ParticipleIrregular Verb
Next quiz: General Knowledge
What grade would you expect to find in a junior high school?
A. 3rd Grade
B. 12th Grade
C. 1st Grade
D. 7th Grade
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