______Something must be done to stop the farmers cutting down the forests.______I agree with you ,if we_______floods and droughts will happen more often.1:won not 2:are not 3:do not 4:must not選哪個?為什么?

熱心網友

大學的題嗎

熱心網友

do not!如果我們不做些什么,洪水和干旱會發生的更多!