Correct the sentence by choosing the right option for the underlined portion: ” I am tired as I am working since morning” A) I was working B) I have been working C) I had been working D) I will be working Related MCQs: Choose the correct option in place of the UNDERLINED part from the given options? Choose the correct option in place of the UNDERLINED part from the given options? Pick the correct sentence of the underlined word: Choose the correct sentence of the underlined word: