Catherine is afraid of flying. She feels before she gets on a plane.

the light pollution, stars are too faint _________with naked eyes in the urban area.

Tom ________ in the library every night over the last three months.(2011·北京)

58. Sometimes, the entrance tickets are _______ free of charge from the university.

I can’t believe the old man can come here from his home on foot.— It’s really not easy such an old man so far.