【正文】
as a dark co lor. This dark soil is humus, dead leaves, dead plants and animal waste make it, but this takes a long time. When the humus has been made, plants can grow well in it. All soil needs food. If we don?t give it any, the plants will be weak. Animals waste is the best food for the soil, but chemical fertilizers (化肥 ) are also very useful. The same crop should not be grown in the same place every year。t C. mustn39。t find (8)______ from its usual place and was leaving when he saw an assistant signing to him. To his surprise, the assistant pointed to the book (9)______, “I put it there so as not to be sold out,” said the assistant. Then he (10)______ the student to go on with his reading. ( )1. A. good B. bad C. cheap D. expensive ( )2. A. shouldn39。t want. You may try to find out (3)_____ the book you want is. But if you fail, the assistant will lead you there and then he will go away. It seems that he is (4)______ selling any book at all. There is a story which tells us about a good shop. A medical student (5)_____ a very useful book in the shop, (6)_____ it was too expensive for him to buy. He couldn39。 The school ________ ________ in the ________ of the world. 。 The Great Wall is ________ ________7 240 ________ ________. 。 on 8. The village is building a school. I hope it ____ before August this year. A. finishes B. will finish C. is finished D. will be finished II. 根據(jù)漢語提示完成句子 3 米高。 in C. la