I. Complete the sentences using the following words: journey, awful, symbol, common, polluted, peaceful, popular. 1. The weather in this city is ____________. It is very hot and humid. 2. Visiting relatives and friends is the most ____________family activity during Vietnamese Tet. 3. They went on a long train ____________ around Europe. 4. Da Lat is a ____________ and lovely city. 5. Big Ben is the cultural ____________ of London and England. 6. - What is the most ____________ food in Vietnam? - Maybe it is rice. 7. The air in Beijing has become ____________ recently.