（2014年北京市西城区高三5月二模试题）28. It was unusual that such close neighbors ______ not know one another.

For our own safety, it’s important to the traffic rules on the way to school.

Were it not for the snowy weather, we ________ all right.

Nobody wants to make friends with the girl ________ lies.

esident stood by a window inside the room, ________ I entered, looking over the square.