句型转换。
I often visit my grandparents during the summer holiday. (用he做主语改写)
He often                         grandparents during the summer holiday.
Lucy does the homework every evening. (改为一般疑问句)
Lucy             the homework every evening?
People often plant trees in the park every spring. (对划线部分提问)
                       people often plant trees every spring?
There are some football cards in the bag. (改为否定句)
There                         football cards in the bag.
What about going to the park for a walk? (改为同义句)
                       go to the park for a walk?