20．D.本句说明这个工人回答彼得的问题之前沉默了一会儿.A选项应用a moment, C选项表示某一点时间, D选项表示一段时间或一会儿.为正确选项. 21 A strange thing happened to Henry yesterday. He was on a bus and to 1 . So he stood up and rang the bell. 2 make sure the driver heard him, he rang it twice, but the bus 3 stop. And the conductor came and shouted 4 him. The conductor was 5 angry and spoke 6 fast that Henry didn’t understand 7 . The bus stopped at the next bus and Henry got off. As he got off he heard someone said, “ I think he 8 a foreigner. When Henry got 9 , he told his wife about it. “ 10 times did you ring the bell? his wife asked. “ Twice, said Henry. “ Well, that’s the signal 11 the driver 12 on. His wife explained, “only the conductor 13 to ring the bell twice. That’s why the conductor 14 so angry! Henry nodded. “ 15 , he said. 【查看更多】
