THE 22ND SEA GAMESCHOOSE THE WORD WHOSE UNDERLINED PART IS PRONOUNCED...

16. - DE TIENG ANH 12 CO BAN UNIT 13 CO DAP AN
DE TIENG ANH 12 CO BAN UNIT 13 CO DAP AN

16. Every computer consists of a number of systems ________together.

A. by working

B. work

C. they work

D. that work