elevision was first introduced, the extent_______ it would affect society could not have been foreseen.

you finished your work —Yes. Actually, I _______ it before you came.

Are you still very busy? — Yes, I_____the report for the manager and it won’t take long

stayed in the countryside, I enjoyed___ leisurely walk on the country road, and felt ___ warmth of the sun on myface.

ping a low-carbon economyis__________global topic and the world needs__________clean revolution withparticipation from everyone, decision makers to the children