the goverment have some laws____是change还是changed

the goverment have some laws____是change还是changed something have changed?语法对吗?还是something had change? have you changed the do you have some change?和do you have any change?哪一个是对的 times 是has还是have changed a lot 是"there has changed a lot"还是"there have changed a lot"?”为什么 是"there has changed a lot"还是"there have changed a lot"? The goverment has taken some measures .aming at cutting down 1 Some of the ---[invent] have changed the wold.2Zhang Yinin with the goverment's aid,those__by the earthquake have moved The China goverment have legal 中文意思是什么 These objects have often changed the way we live.Some help u