Was it in the science museum _______ you visited yesterday _______ you left your keys?

依次填入句中横线处的词语，最恰当的一项是每个时代都有其特定的风尚，人们在生活中________，并在行动上追随效仿，自然会形成当时的一种文化趋向。当然，文化趋向并不像风尚那样没有定向，它会________某个阶层的文化追求，进而形成一个社会的文化认同，________凝聚起整个民族的情感。

The meeting will begin ________ 4:30 this afternoon. Don’t forget it.

It doesn’t matter _______ you wear, _______ you attend the ceremony on time.

The weather is awful. If it gets _________, we can go out and have a basketball game with Class 2.