Все формы глагола must

Complete the sentences putting in the verbs. Use the Present Perfect Continuous83. She already has been doing her homework for two hours.84. He has been working here for fifteen years.85. The sun has been shining ever since we got up.86. I have been waiting for you a long time.87. What have you been doing here since morning?88. Granny has been cooking since the very morning.89. She has been working here for 30 years.90. Dad has been singing for since 3 years.91. We have been singing of it for two hours, but cannot find a solution.92. Why is mum looking so sleepy and tired?- She has been working all night long.93. We have been living in Spain for two years, but don’t want to leave.

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Что нужно?wot? !!!!!!!!!