January, ​ (a)   , March, ​ (b)   , ​ (c)   , June, ​ (d)   , August, September, ​ (e)   , November, December

Marry: Hi! Is that Andrea? This is Marry speaking.

Andrea: Hello Marry! How are you doing?

Marry: I'm good. I'm just phoning to invite you to come over my birthday party tonight.

Andrea: Hmm... It's pretty ​ (a)   and ​ (b)   now. I don't think I should go out today. I'm really sorry. Let's catch up next time!

Marry: Alright! See you later!

Andrea: Hello! Is that Marry? This is Andrea speaking.

Marry: Hello Andrea! How are you?

Andrea: I'm all good! I'm calling to say sorry because I couldn't come to your birthday party last night.

Marry: It's alright! I totally understand.

Andrea: Do you have some time today to go out with me? It's such a lovely day, very ​ (a)   and ​ (b)   .

Marry: Yah, you're right! So let's meet at 3 pm!

Andrea: Alright! See you then!

A team of social ​ (a)   from California has spent 6 years studying the ​ (b)   of people in cities around the world to different ​ (c)   . The results show that cities where people have less money generally have friendlier ​ (d)   . Rio de Janeiro in Brazil, which is often known for its ​ (e)   , comes out top, and the capital of Malawi, Lilongwe, comes third.

But what makes one city friendlier than another? The psychologists from California State University say it has got more to do with ​ (a)   than culture or nationality.

They carried out a study into the way locals ​ (b)   strangers in 23 cities around the world. The team conducted their research through a series of tests, where they ​ (c)   pens or ​ (d)   they were ​ (e)   and needed help crossing the street.

The study ​ (a)   that people are more helpful in cities with a more relaxed ​ (b)   such as Rio. While they were there, researchers received help in 93% of cases, and the percentage in Lilongwe was only a little lower. However, richer cities such as Amsterdam and New York are considered the least friendly. ​ (c)   of Amsterdam helped the researchers in 53% of cases and in New York just 44%. The psychologists found that, in these cities, people tend to be ​ (d)   of time, so they hurry and often don't ​ (e)   strangers .

Last summer, I travelled to Danang. It was such a lovely place with ​ (a)   . I tried many ​ (b)   , but I really fell in love with the street foods there.

If you have free time, I really think you should go and visit Dalat. There are ​ (a)   there. In the morning, if you can wake up early, you should go to high mountains and enjoy the feelings of being ​ (b)   by clouds while drinking a hot cup of coffee. Also, Dalat night market is a place for ​ (c)   . There are many things you can buy there and the prices are also very reasonable. Plus, if you are lucky, you will be able to attend ​ (d)   there. One of the most famous events in Dalat is the Flower festival. During the festival, you can enjoy the beauty of diverse flowers.