choose the correct sentence
A. what are you doing for last fours hours
B. what did you doing for the last four hours?
C. what have you been doing for the last four hours ?
D. what are you done for the last four hours?
RUUnit-ESet-2ইংরেজি - গ্রামার ও ভোকাবুলারিTense & Sequence of TenseRU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
C.
what have you been doing for the last four hours ?
Explanation:

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