根据句意及首字母提示补全单词
【小题1】Machines and robots will do all the h______ and difficult jobs.
【小题2】She likes to wash her clothes by hand, but she doesn't like doing it by m______.
【小题3】We are going to send rockets into s______.
【小题4】His dream of visiting London will come t______.
【小题5】The cell phone will be very c______ in the future.