Question

[phạm đỗ thái an]

if everyone ........ (work) an extra hour a day, it would greatly increase production

Answer 1

[ミ★๖ۣۜSεηαbĭ ๖ۣۜTĭʂт ๖ۣۜKεү ★彡]

trả lời 

if everyone ....working.... (work) an extra hour a day, it would greatly increase production

chắc vại :vhc tốt 

Answer 2

[Vũ Minh Nguyệt]

If everyone  works  An extra hour a day, it would greatly increase production