Then they..... cell phones.
invented (discovered=menemukan)
She ..... them to her friends in different countries.
mailed
And she learned to ..... by text message.
communicate
Now she has a computer and she likes to ..... emails to her friends.
send
When my grandma was young, she .....
wrote a lot of letters.
She can ..... messages from all over the world. My grandma is a very busy person!
receive