we must know the use the people___waste things A make Bmake

we must know the use the people___waste things A make Bmake We may not know ( ) to use the telephone in the country we a We mustn't use the things ____(pollute) the environment. We must make the roads ______. If we don't know the meanming of a new word,we can use a ( ) So we must be careful when we use the Internet. 一道英语题when we shop,make sure the things we buy can d( )a long when we shop,make sure the things we buy can d( )a long time we should use the things made of paper 这句话? We should use the things _______ of paper. 用分词适当形式填空We must keep the things ______(discuss)now a secret 英语翻译"We must keep a secret of the things being discussed her