1 . To the east of the Pacific coast rise the grand Rocky Mountains, ____________ are home to high peaks and deep valleys. (用适当的词填空)

2 . Skydiving is an adventurous sport _________ courage matters more than strength. (用适当的词填空)

3 . On the old Silk Road, Dunhuang was the gateway to and from ancient China, a place ______ East met West. (用适当的词填空)

4 . The greatest danger ______ sailors have to face is probably fog. (用适当的词填空)

5 . Peter was a well-known doctor in the hospital, with_________help we finished the operation well. (用适当的词填空)

6 . 你最好在四月来无锡，那时候天气最佳。(非限制性定语从句)(汉译英)

10 . After graduation, he joined the very organization ________ was set up to help the seniors. （用适当的词填空）