It is_____that he has been addicted to the drugs and has difficulty quitting it.[ ]

How long did you stay at the airport—I stayed there Bob came to pick me up, for about two hours.

The film star is content with herself，and she always likes to ________ her nice figureby wearing tight dresses in public.

Oh, my God! I really don’t know ____next. –What’s wrong Can I help you

The movie covers all of Chinese history. It is _________ worth seeing again.