Question

Mr. Smith ________ his pupils how to prepare for the test since 8 am, but no one listens to him.

A．has told　B．is telling

C．has been telling　D．will have told

 

Answer 1

C

【解析】句意：Mr.Smith從早上8點開始就一直在不停地告訴學(xué)生們?nèi)绾螠?zhǔn)備考試，但沒有一個學(xué)生聽他講。空處的動作從過去某一時間開始一直延續(xù)到現(xiàn)在，可能還要繼續(xù)下去，因此應(yīng)用現(xiàn)在完成進(jìn)行時。故答案選C。