3 . Never had they tasted such peculiar flavor before__________ was unique to this remote mountain village, __________ingredients were simple but quite rare.

A．that; whose

B．as; which

C．which; where

D．as; whose

5 . The reasons why Chinese is enjoying great popularity are as follows. First, China is already a global economic power, _________ influence is growing. (用适当的词填空)

6 . The 150-metre-tall bridge crosses a deep, narrow valley, ________ aim is to bring in thrill-seeking tourists. (用适当的词填空)

7 . May 22 marks the annual International Day for Biological Diversity, ________ theme for this year is “From Agreement to Action: Build Back Biodiversity”. (用适当的词填空)

9 . 庞贝古城，其保存完好的遗址为人们提供了一个无与伦比的机会去窥探维苏威火山灾难前罗马时代的生活，是联合国教科文组织认定的世界文化遗产。
The ancient city of Pompeii, __________well-preserved ruins provide an unparalleled glimpse into Roman life before the catastrophic eruption of Mount Vesuvius, is a UNESCO World Heritage Site.

10 . This year, the 13th Spring Festival Joint Exhibition of Chinese Books, ______ theme was “Reading China”, was held on January 24th in 85 bookstores worldwide. （用适当的词填空）