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twenty years ago
twenty years ago
thirty years ago
Mike
Mrs Brown
Mr Brown
Mike's grandpa
The changes of Mike's family.
Let’s review：
Mike
can do many things
six years ago
couldn’t ______
write
could________
read & draw
Mr Brown
writes emails
twenty years ago
used the telephone
wrote letters
has a mobile
phone
Grandpa
reads and watches news on the Internet
thirty years ago
read newspapers
listened to the radio
reads e-books
Mrs Brown