This has made _______ possible for us to catch up with the developed countries. A that B it C us D our country
17.The movie is to deucate people about environmental problems ______ our planet.
16.With a final conclusion _____, the meeting ended at 4:30 p.m. last Monday.
15.________ this land our home, we will fight until we die
14.How can you cross the river _________ by swimming?
13.—Jane, you have held a wonderful party.—_____.