WASHING MACHINES, VACUUM CLEANERS, AND DISH WASHERS ARE LABOR _______ DEVICES WHICH HELP US DO HOUSEWORK EASILY AND QUICKLY

40. - File thứ 3: anh12new_231201916
File thứ 3: anh12new_231201916

40.

Washing machines, vacuum cleaners, and dish washers are labor _______ devices which help us do housework

easily and quickly.

A.

employing

B.

making

C.

improving

D.

saving