The Korean students can interact with a robot in the classroom which is controlled by the teacher.

The students danced in the classroom ,(surround)__________ the new teacher.

Compared with the servo controlled robot, the non-servo controlled robot has a larger memory storage

When I entered the classroom, three students ________(test) by the teacher.

Classroom language can also be called in-class language, which is the specially used language system

A、Spoken language.
B、Body language.
C、Spelling language.
D、Written language.