Expertshavefoundthatnormalsleepcanbedividedintofive______stages

This scientist was awarded with several titles for his________(accomplish) in biology

Robots, ___(become) increasingly prevalent in factories and industrial plants throughout the developed world, are programmed and engineered to perform industrial tasks without human intervention.

Itwas________ofyounottodisturbuswhileweweresleeping

The teacher required that all errors should be _______eliminated before the students turn in their term paper