第一单元1、But in the past 100,000 years-even the past 100 years-our ( ) have been transformed but our bodies have not .A:live B:liveliness C:livelihoods 2、Research on animal intelligence also makes me wonder what experiments animals would ( ) on humans if they had the chance .A:deliver B:carry C:perform D:apply3、However,when two monkeys were placed in separate but adjoining chambers,so that each could observe what the other was getting in return for its roc
