They are waiting for her since the afternoon.
In this sentence, the error is in the tense form. The correct choice is (c) as the sentence shows a continuous sense. The correct tense is therefore present perfect continuous (have been waiting)
940 MCQ for effective preparation of the test of General of English Grammar section.
Read the MCQ statement: They are waiting for her since the afternoon. , keenly and apply the method you have learn through the video lessons for General to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 108-4387.