WASHING MACHINES, VACUUM CLEANERS, AND DISH WASHERS ARE LABOR ___...

33. - File thứ 3: anh12new_231201916
File thứ 3: anh12new_231201916

33.

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

easily and quickly.

A.

making

B.

saving

C.

improving

D.

employing