Sorry, I have to ______ now. It’s time for class.—- OK, I’ll call back later.

If he starts talking about his past, you will never___ from him.

Look out! Can you see some boy students ________ basketball

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

Last month’s terrible train crash in Wenzhou has shaken the country,not only causing the loss of lives,but also____peopleconfidence in the rail system. [ ]