题目

根据句意及首字母提示完成单词【1】Life is just like a m_____.You smile at it,and it smiles at you,too.【2】Don't t________ the machine. It's dangerous.【3】It's n_________ to keep healthy.【4】There is a Chinese s_________:Time and tide wait for no man.【5】She often s________ good music with me.【6】Hurry up,or we can't r_______ the railway station.【7】Don't l________ at that old man. It's not polite.【8】You should wash h________ before meals.【9】Work hard,and you can get good g________ in the exams. Our teacher helped us ________ the trees.          A.plant     B.planted    C.planting     D.plants