双基限时练(十七) unit 6 lesson 1 ⅰ.单词拼写 1．there are all kinds of household facilities on show in the ________ (展览会)．答案 exhibition 2．it's too hot to stand in the sun.come here to sit down in the ________ (荫凉处) to cool yourself. 答案 shade 3．our time is too ________ (宝贵的) to lose.so you should not waste it.
