介词填空。

1. Can you write _____ English?

2. A lot of e-mail English words might look unfamiliar _____ us many look _____ rubbish.

3. It's created _____ combining letters and symbols or numbers.

4. " Great" would be written _____ "gr8".

5. You can make faces _____ punctuation marks.

6. It's made with a colon and a right bracket _____ it.

7. You can learn it easily _____ yourselves.

8. It's important to use it only _____the proper time.

9. You can send a message to your friend _____ a mobile phone.