_television is more useful than _radio.A A,a B An,an C The,t

_television is more useful than _radio.A A,a B An,an C The,t The dog is (a/an/the//) useful any more ___ elephant is ___ useful animal.A.An;an B.An;a C.Thn;an D. This is a ( ) useful advice A a B an C the D 应选哪一个 He thinks that a computer is( )useful friend.A.a B.an C.the English is 什么 useful language in 什么world A.an,the B.a,the C. This is ______ useful book. A. a B. an C. the D/ This is ___ useful dictionary .选择：A.an B.a C.the D./ an elephant is ( ) bigger than a horse A a lot B more C much A computer is more useful than an MP3.同义句转换 an eiephant is-useful animal的横线应填什么?A.a B.an C.the D./ The UFO is___smaller than my paw.a.much b.even c.more d.a an