exist 与 live的区别do you think fish ______ on Earth millions of years _____ birds?A.existed;than B.existed;fromC.lived;beforeD.lived;to

问题描述:

exist 与 live的区别
do you think fish ______ on Earth millions of years _____ birds?
A.existed;than
B.existed;from
C.lived;before
D.lived;to