1.()About 70 per cent of the world’s vadio stations use Engl

1.()About 70 per cent of the world's vadio stations use English ___________ their programmes.
A、broadcast B、for broadcast C、to broadcasting D、for broadrosting
2.()He coughed a lot,so he'd better ___________smoking.
A.to give up B.give up C.not give up D.not to give up

D和B.
第一个use……for doing sth
第二个had better do sth