祈使句的构成与用法 — 英语词汇题
题目
按要求完成下列各小题。1. 请写出祈使句的否定形式：Open your books. → ______ your books. 2. 根据句意及首字母提示补全单词：P____ (请) close the door. 3. 将下列句子改为祈使句：You should listen to the teacher carefully. → ______ to the teacher carefully. 4. 判断：'Don't is late for class.' 这句祈使句是否正确？若不正确，请改正：______