When the teacher talked ____ the students,they kept their hands ____ their sides.A with;at B to;When the teacher talked ____ the students,they kept their hands ____ their sides.A with;at B to;by C to; on

问题描述:

When the teacher talked ____ the students,they kept their hands ____ their sides.A with;at B to;
When the teacher talked ____ the students,they kept their hands ____ their sides.A with;at B to;by C to; on