in Classroom 7E 7E 是什么?

选B.
第一个 主语是keys,这是复数,所以用复数are
第二个 ask sb for sth 跟某人要...东西

Hello,my friends.Let me introduce my classroom for you.My classroom is in the third floor.It is big and clean.There are thirty-two desks and chairs in it.My seat is near the window.We have six new lights,six windows,four fans and two doors.There is a big yellow teacher’s desk in front of the classroom and four boxes of chalk on it .
This is my classroom.I like my classroom!

"in the classroom"
in class,在课堂上（表示环境）,可以理解成“上课中”；
in the classroom,在教室里（表示地点）.
the classroom 7,7可以理解为classroom的后置定语,而没有它限制的时候,特指要用定冠词the,放在前面.
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