A：Tina can't go swimming this weekend.
B：Tina is going swimming this weekend.
C：Tina isn't going swimming this weekend.
Kitty is ____. Mary is big.
我国北方住宅区的楼房间隔，理论上应比南方更宽，理由是（ ）
遇到火灾不要慌，请速拨（ ）
