题目

 I was gong to pay _____it suddenly________ me that I had left my purse at home.    A. that; hit           B. when; occurred to    C. while; struck      D. when; occurred 答案：B赵阿姨带的钱刚好够买100千克苹果。她发现梨的单价只有苹果的一半，就拿出一半的钱去买梨，能买梨多少千克？ ( )A.50千克B.100千克C.200千克