they ---(到达)the museun at a quarter to nine yesterday.

答案：1/2都可以,3/4错误.
表达“到达某地”的短语为：reach...；get to...；arrive at/in/on...
上述短语都要求其后的宾语为代词/名词（短语）.
如果其后为副词,则直接变成reach...；get...；arrive...,即表地点的副词前面不能出现介词.
如：I got to Beijing.= I reached Beijing.= I arrived in Beijing.
I got home.= I reached home.= I arrived home.
其中,reach为及物动词,arrive后面的介词选择原则是：大地方（市级以上含市级）用in,小地方用at,特殊地方需要用on的地方用on（如farm/island等）.