preclude|precluded|precludes

他的年龄限制使他无法参加这个比赛。

His age ___precluded him from entering the competition.

恶劣的天气阻碍了我们原定的野餐计划。

The bad weather ___precluded our planned picnic.

他繁忙的工作安排排除了参加聚会的可能性。

His busy work schedule ___precludes him from attending the party.