Rewrite the sentences using a structure from the Learn this! box. Start with the words in brackets. (Viết lại câu dùng các cấu trúc trong phần Learn this! Bắt đầu câu bằng từ trong ngoặc.)

1. Online conversations are quick and easy. They are often superficial. (Although...)

2. The non-verbal aspects of conversations are really important. (It is...)

3. A lot of people believe that you only need a few close friends. (It is...)

4. People are busy. They can still keep in touch using social media. (Even if ...)