After fifteen years’ working for the company, __________ (他被任命为主管).

A．operation
B．disease
C．condition
D．injection

A．they want to make a change after eating the same food for years at home
B．the food made outside home tastes better than food cooked at home
C．many of them live alone or don’t like taking trouble to cook
D．American women refuse to cook at home due to women’s liberation movement