I am so glad that you will come to Nanjing during the holidagy. You said you wanted to know something about     1     (travel) in Nanjing. Well, here is some advice on how to travel around Nanjing.

The     2     (fast) way to come to Nanjing is by plane. The airport is about one hour’s bus ride away from the downtown (市区). And you can get off at Xinjiekou.The underground in Nanjing     3     (be) in use since 2005. You can take Line 1 to your hotel. It’s fast. I wonder how long you     4     (stay) in Nanjng and what places you are     5     (interest) in. Maybe you want to travel around the city. It’s a good idea     6     (take) a taxi. The     7     (drive ) will tell you more about the city. You said you planned     8     (go) to Shanghai as well. You can go there by train. The high-speed railway is very modern. The trip from Nanjing to Shanghai will take     9     (little) than two hours. You can also go there by coach, but it will take more time.

In Hong Kong, there     10     (be) some double-deckers running around the city, but you can see few of them in Nanjing. Nanjing is developing fast now. A report says that people will build light rail connecting the airport and the downtown.

4 . This summer my family went on a trip to Stockholm.

Before the trip, we booked a hotel room in     1     city centre. When we arrived in Stockholm, we     2     (take) a bus to the hotel. Then we went out for dinner. We saw trees and flowers everywhere on the way to the restaurant. We felt like we were in a big forest.     3     a lovely city!

The next day we visited the Vasa Museum. It’s home to an old ship—the Vasa. Nobody was     4     (excited) than my son, because visiting museums is     5     (he) favourite. There were many visitors in front of the museum. We waited     6     a long time and felt a little tired. But     7     we went into the museum, we were all surprised. The ship looked very cool and beautiful. Then we took quite a few photos.

The third day we went to a park in Stockholm. Lots of people were in the park. My son played with some     8     (child) there. I talked with their parents. My husband watched a chess game. I thought it was the best way     9     (feel) Stockholm!

It was a really     10     (relax) trip. We all had a good time.

Spring in Beijing is a warm and     1     (sun) season. However, it is also the season for catkins (柳絮). You can see lots of these little white balls of fuzz     2     (fly) all around you.

Catkins are the seeds of female polar (杨树) and willow trees. The trees     3     (plant) widely in Beijing in the 1960s and 1970s, as they are cheap, easy to take care of and can grow     4     (quick). However, catkins pose (造成) a few problems. They can trigger allergies (引起过敏)and make people     5     (cough). People with asthma (哮喘) have an     6     (special)hard time dealing with them. Catkins can also make it hard for drivers     7     (see) the road ahead of them. They can even catch on fire!

The local government     8     (try) a few different things to deal with the catkins. “We have trimmed (修剪) some branches. We will also use high-pressure water guns to take down the seeds and wash     9     (they) away,” Wang Xiaoping, a Beijing bureau official, said to China Daily. “We     10     (improve) the catkin situation significantly in the near future.”

Dunhuang is a historic city in Gansu. In ancient times, Dunhuang was an important c     1     of trade. As the Silk Road developed, Dunhuang became China’s western gateway to the world. Here, different cultures met and influenced each other. People from f     2     countries did business and communicated with the local people.

If you v     3     Dunhuang, you will be able to see the Mogao Caves（莫高窟）. If you walk i     4     , you will discover some of the wonderful artworks. There are over 45,000 square metres of beautiful paintings on the cave walls, as well as thousands of statues.

Over the years, China has made great efforts to protect the Mogao Caves. Today, you can also find high-quality photos of the artworks on the Internet. People all over the world now have a c     5     to see Dunhuang’s treasures online.

10 . In the old days, in London, the smog (烟雾) was very thick. Drivers had to drive very s    1    . It was hard for them to see the road in front of them even during the daytime. People did not like going out in the smog. I    2     they had to go out, they wore masks (面具) over their faces.

In December 1952, a very thick dark cloud came down over London. It was the heaviest smog Londoners had ever had. About fifty people d    3     in road accidents. And many people became unhealthy. The smog was very b    4     for old people and children. One man said, “The s    5     were almost empty because people stayed at home as much as possible. The air was very thick, and you could almost cut it with a knife.”