What a great fun they are having in the park 改错

They are having fun _____in the park what a great fun we had playing in the park yesterday改错 What a good time they are having in the park是正确的句子吗? 1.they are having great fun.改感叹句what great fun they are havi They are having fun in the zoo THEY ARE HAVING A GOOD TIME IN THE PARK they are having fun in the park(改为同义句） they are __ __ __ in the boys are having great fun _______ in the waves We are having fun in the park的同义句 We are having fun in the park.同义句是啥? We are having fun in the park.同义句 Everyone in the park are having fun.错误在哪