根据所给的汉语语提示，转换下列句型。

1. E-mail English is used for saving time.   (改为同义句)

   E-mail English is used                time.

2. People can use their computers to talk to each other.   (改为同义句)

   People can use their computers to talk to               .

3. He was supposed to arrive at 7:00 pm. （对画部分提问)

                  was he supposed to arrive?

4. He has ever been to Tokyo.  (改为否定句)

   He               been to Tokyo.

5. Don't be afraid of making mistakes.  (改为同义句)

   Don't be afraid                mistakes.