英语翻译
1.the place ( ) the bridge is supposed to be built should be ( ) the cross-river traffic is the heaviest.
A.which,where
B.at which,which
C.at which,where
D.which,in which
2.Jumping out of ( ) airplane at ten thousand feet is quite ( ) exciting experience.
A./,the
B./,an
C.an,an
D.the,the