The elderly need special care in winter, as they are _____ to the sudden change of weather. [ ]

How could she be so calm in front of so many people It is really _______me.

Get involved in sports or other activities you enjoy______you can meet people who like what you like.

下列表述有误的一项是(　　)

______ I know, the place where we used to _____ our flag has become a modern teaching building.[ ]