题目内容：

Nowadays，studying abroad is popular in China with many rich parents. They would rather send their children abroad to receive education in English-speaking countries than let them be educated in China.

As every coin has two sides，studying abroad is the same．There are advantages for people to attend schools abroad. In the first place，he can use English in his daily life to improve his English greatly，as it is obvious that there is no better chance to improve English than living in the country where it is spoken. While studying in a foreign country，it is possible to make friends from all over the world. This is not only exciting on the social level，but could lead to important overseas contacts in his career as well. He can get familiar with the latest knowledge in science and make use of the best facilities available. In this way, he is able to widen his horizon and broaden his mind.

Of course，attending schools abroad may bring about a series of problems. The most serious problem is language barrier．Most of the students who go abroad don’t have enough skills in the language spoken there. As a result，on arriving there，they will find it difficult to understand what the teachers say. Besides，for lack of knowledge of the customs of the local people，they may constantly run into trouble in dealing with various situations.

In conclusion，given an opportunity to attend a school abroad，one must consider both sides of the factors carefully before making up his mind.

1. List two advantages of studying abroad.

2. What is the most serious problem of studying abroad?

3. What’s the passage mainly about?