答案:1-5 CBADC 6-10 DBAAB 11-12 DC13-17CAADB 18-22DBCCB 23-24 AD25-28 CADB 29-32 BDDC 33-37 BACDA38-41 BFDE42-46 CGBEA47 third 48 yourself 49snow 50 friends 51 to warn52. nervous 53 until 54 was 55 metres 56 was built 57 No 58 trouble 59 repeated 60 angry 61 shouted 62 couldnt 63 Weed on the Wall.64 The picture is silent but powerful.65No, he didnt66 Gong is a patient photographer.67. 略68. Have you received it?69. He is showing foreign teachers around school.70. Speak English as much as possible in class.71. I hope that you can prepare earlier.72. Stand in line before getting on the bus.作文:略