Question 13: _________TV for the last four hours? Turn it off and get some exercise.
Present perfect continuous: have / has + been + V-ing
The present perfect continuous describes an action that started in the past; persists to the present and may continue into the future. The present perfect continuous emphasizes the duration of an action over a certain period of time. (“for” and “since” are used in the HTHTTD tense)
=> Answer D (Have you been watching TV for the past 4 hours? Turn it off and do your homework.)
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