Our farm is ________ Bill’s. [ ]

Must I practice the violin now ,mom—No, you You can go out for a walk.

________did your uncle leave his hometown—He ________ for nearly twenty years.

The doctors in ORBIS have done ______ animportant job ______ the patients are all grateful to them.

wrote a letter of complaint(投诉)，and the airline have promised to _______the matter．