What great fun it was(fly)kites on the playground daughter适当形式填空

问题描述:

What great fun it was(fly)kites on the playground daughter适当形式填空

was的原型是is,而且is是be动词.而fly是动词,根据语法点两动词之间要加to,在fly之前加上to,整个句子是过去时态,动词fly变为flyw.故答案为to flyw.手机党,自己打的呢QUQ