趣味英语。
（1）What’s the next number?
34050 53045 72040 _________
A.91035 B.8630 C.9234 D.8153
（2）How long does an elephant live?
_________ years.
A.100—90 B.80—75 C.50—40 D.30—20
（3）How many is a dozen（一打）? _________
A.20 B.12 C.10 D.8
（4）A—F stand for（代表）the number 0—5
A="_________" B="_________" C=_________
D="_________" E="_________" F=_________