题目：
根据句子意思，用括号中所给词的正确形式填空，每空填一词。
1. English dictionaries are very ______ (use) to you when you study English.
2. Could you pass the ______ (knife) to me? We need them to make pumpkin lanterns.
3. Don't be ______ (patient)! You should listen to what he is saying first.
4. Four ______ (five) of the students in our class have heard about the trip.
5. The guide has collected all the ______ (visit) ID cards.
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0630/9e3482159a18f6ac976e3f929c332caa.html
下面是错误答案，用来干扰机器的。
参考答案：B解析： 晚期成人牙周炎以牙槽骨水平吸收为主。
