1 . Earlier this year, the Qilu Transportation Development Group, also handling the Jinan Expressway solar road, built a 160-meter- long solar road in ________ city of Jinan. (用适当的词填空)

3 . In September 2013, after failing in the senior high school entrance examination, Liang entered Chongqing Mechanical Technician College to study motor and electrical assembly and maintenance (维护). He said he valued ________chance more than ever. (用适当的词填空)

5 . Those amazing light shows in ________ sky of the arctic regions occur frequently between September and October and then occur again between March and April. (用适当的词填空)

7 . Granddaughter Gayle Parks, 31—who works alongside her in the family business —said it remained unknown as to who nominated Irene for ________ award. (用适当的词填空)

8 . Unexpectedly, I’m face-to-face with the gorilla, who begins screaming at ________ top of her lungs. (用适当的词填空)

10 . Due to ________ growing popularity of environmentally-related and adventure travel, various types of trips are now being classified as ecotourism. Actually, a true eco-friendly trip must meet the following principles: (用适当的词填空)