The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
The poor little boy ______ by his heartless parents was seen begging in the street.
–I was wondering if we could go skiing on the weekend. –______ good.
The house rent is high. I've got about half the space I had at home and I'm paying ______ here.
______ we have enough evidence (证据), we can't win the case.
My uncle ______ in Beijing for over 10 years. Now he lives in his hometown in Fuzhou.