Suzy got a letter from her best friend three days ago．（改为同义句）
Suzy       her best friend three days ago.
Mr Frank taught his little son to play ping-pong last Sunday afternoon．（改为否定句）
Mr Frank       his little son to play ping-pong last Sunday afternoon.
My grandpa is already 80 years old，but he can still take care of himself．（改为同义句）
My granddpa is already 80 years old, but he is still   to   after himself.
It is about fifteen minutes' walk from my home to Suzhou Amusement Park.（对划线部分提问）
is it from your home to Suzhou Amusement park?
He went to school．He didn't have breakfast this morning．（合并句子）
He Went to school       breakfast this morning.