After studying in America for seven years, Lily’s brother ______ his job as a doctor in Japan.
It's OK to________an electrical appliance on so long as you are using it.
It________heavily for 2 weeks and the farmers were very worried.
You cannot tell________looking at someone whether or not he has HIV.
The days are gone________you can breathe fresh,unpolluted air or drink clean, unpolluted water in the countryside.
Learn some relaxation exercises and do them every time you feel________.