你想让别人和你一起打扫教室，你说：_________.
A. Let me clean the classroom
B. Let’s clean the classroom.
C. Let’s clean the window.
This is a ______ desk.
A. teacher B. teacher’s C. teachers
We ____ a new classroom.
A. has B. have C. are
Open the ______.
A. picture B. light C. door
Wow! It’s _____ beautiful!
A. so B. how C. a