Впиши смыслу can или can't horses run veyry well.turtles swim.dogs eat flowers.birds run very well. little boys and girls read very well. bears eat fish.frogs sing.

Horses can run very well.Turtles can swim.Dogs can't eat flowers.Birds can't run very well. Little boys and girls can read very well. Bears can eat fish.Frogs can sing.
В последнем не уверена, так как не знаю, в каком смысле петь. Если - квакать, то can, а если петь песни, то can't. Но скорее всего can, так как лягушки могут петь свои "лягушачьи песни"