他们在哪里举行他们的党派大会？

Where are they holding their party ___convention?

全国民主党大会将于明年夏天在芝加哥举行。

The national Democratic ___convention will take place in Chicago next summer.

翻新后的建筑是举办科学会议的绝佳场所。

The renovated building is an excellent venue for a scientific ___convention.