spread的过去式和过去分词是什么？

spread的过去式和过去分词是他的原形。

spread

v.展开;打开;摊开;使散开;张开;伸开；

n.传播;散布;扩展;蔓延;广泛;多样;抹在面包上的东西；

例句Using too much water could spread the stain.

用水太多可能使污迹扩散。

They took active steps to prevent the spread of the disease.

他们采取积极措施，防止疾病蔓延。

Use of computers spread rapidly during that period.

在那个时期，计算机的应用迅速流传开来。

His work was spread all over the floor.

他工作的材料摊了一地。

Within weeks, his confidence had spread throughout the team.

短短几个星期，他的信心感染了全体队员。

The company has a good geographical spread of hotels in this country.

该公司在这个国家开设的饭店地理分布相当广。

They had laid on a huge spread for the party.

他们为聚会安排了丰盛的食物。