Ⅰ.根据句意及首字母提示补全单词
1．I left my k________ at home. I can't open the door.
2．Where did you h________ my pen? I can't find it anywhere.
3．The students all stand up when their teacher e________ the classroom.
4．The twins are s________ the room for the missing book now.
5．Children have egg hunts and eat chocolate rabbits on E________ Day.
