People should ____cutting trees A be kept to cut B be kept from cutting C keep to cut D keep from cuA be kept to cut B be kept from cutting C keep to cut D keep from cutting

____Cu+___O2===____CuO should rich people help poor people young people should often help p____ people youngh people should be good()old people 英语翻译People ( ) ( ) ( ) should exercise more. People should stop_____the environment.(pollute) Should people have cosmetic surgery? People should wear warm c___. Why should people plant trees? 配平化学方程式____NH3+_____CuO加热_____N2+____Cu+_____H2O Each ________(people/person)should be honest. young people should live with the old? 76.We should help _________(home) people. should people always be loyal 范文 We should heip the people in 什么 We _________ should help old people. we should prevent people ____shooting ___birds.填空 Doctors say people should keep o_____________填词