herehasbeenagreatincreaseinretailsales,____﹖
A、doesthereMany people attend various public lectures, chiefly ______ themselves familiar with the latest development of different fields.
Theorganizationbrokenorules,but______haditactedresponsibly.
Itisnolongeraproblem_______thepoorchildreninthisdistrictcangotoschool.
Everyone hopes that we can do something to make things better, so we can't help ______ under the stress.
Partoftheworkistobefinishedtodayand______bythisweekend.
