The world has become smaller because of ______.
举一反三
- Winter-swimming has become popular in Beijing because _______.
- Cheating has become easier for students because of ______.
- _____has become the major form of modern credit in the world、
- Asia has overtaken Europe and America to become the world’s biggest beer-drinking continent because Asians have been brewing beer for more than 7000 years .
- China has become the world’s top user of the Internet-its population has increased a lot.