同义句转化3句
7.Mikehaswrittenabookontheenvironment,andJimhasalsowrittenone.
Mikehaswrittenabookontheenvironment,and()()().
8.Thescientistbegantostudythecoralreefseightyearsago.
Thescientist()()thecoralreefs()eightyears.
10.Getupearly,andthenyouwillnotmissthefirsttrain.
()()Getupearly,youwon'tmissthefirsttrain.