Question

 (2011·河南質(zhì)檢)By the time he realizes the mistake he

 ________， it will be too late for him to do anything about it.

A．has made 

B．made

C．makes 

D．will make

Answer 1

A

解析：句意：在他意識到他所犯的錯(cuò)誤的時(shí)候，再采取任何措施已經(jīng)為時(shí)已晚。顯然，在他意識到犯錯(cuò)誤的時(shí)候，他已經(jīng)犯下錯(cuò)誤，因此應(yīng)用現(xiàn)在完成時(shí)。