第1个回答 2010-03-18
Teachers will not use chalks to write on the blackboard.
第2个回答 2010-03-18
The teacher will not use chalk to write on the blackboard.
第3个回答 2010-03-18
the teacher won't use the chalk to write on the blackboard soon
第4个回答 2010-03-18
The teacher will can not use chalk to be in the blackboard writing