48.He can’t help the poor because he doesn’t have money. A. If he has money, he’ll help the poor. B. If he had money, he could help the poor. C. If he had money, he helped the poor. D. If he had money, he couldn’t the poor. 49. “How many students are there in your class?” said the man to me. A. The man said to me how many students are there in my class. B. The man asked me how many students in my class. C.The man asked me how many students there were in my class. D. The man asked me how many students there were in his class. 50. The last time I met him was two years ago. A. I haven’t met him for two years. B. I didn’t meet him two years ago. C. I hadn’t met him for two years. D. I meet him two years ago. 51. “I don’t know how to drive a car”, she said. A. She said she doesn’t know how to drive a car. B. She said she didn’t know how to drive a car. C. She said I don’t know how to drive a car. D. She said I didn’t know how to drive a car. 52.It’s high time................................................. A.We study harder. B.We studied harder. C.We are studying harder. D. We have studied harder.