in touch by telephone with panion and with the earth.РHe kept on telling us the same story over and over.РYou may depend on his doing what he says, for he is a person who always keeps his words.РDanger! Keep out!РWill this overcoat keep the rain out?РIt is also bad manners to keep silent when the teacher asks you a question.РThe rain kept up all night.РI see you are getting along well with your English studies. Keep up the good work.РThe good news keeps our spirits up.РHe walked so fast that I could hardly keep up with him.РEvery few hundred meters along the wall there are watch-towers, where soldiers used to keep watch.РThere is a sign there saying, “Keep off the grass.”Р(14)knock短语:Рknock at /on 敲打(门、窗等) knock down 把……撞倒,击倒Рknock into 撞到,撞上某人,偶然碰见?knock sb out (of sth) 淘汰某人 knock over 撞翻