He weites a letter to his friend on the computer(改为现在进行时）
She reads two books a day(改为一般疑问句）
Lily likes collecting stamps(改为否定式）
I’m riding a horse(对划线部分提问）riding a horse画线
Is he watching cartoons(肯定回答)
I’d like a cold drink(对划线部分提问）a cold drink画线
I’m cleaning ten window(对划线部分提问）
Does he like riding a bike?(否定回答）
What would you like?(用“半磅牛肉”作答）
She is reading under a tree(对划线部分提问） under a tree画线
She likes playing football(改为否定句）