Teachers write on me with chalk.I can't talk.What am 是什么?

Teachers write on me with chalk.I can't talk.What am 是什么? Teachers write on me with chalk .I can't tall .what am Teachers won't write in a blackboard with chalk那里有错 I can`t stand you dou1t talk with me是什么意思 I am the person who you don't want to talk with me~ i am happy with you talk with me A chalk is used by （teachers） to write on the blackboard 对括号 I can't understand what I think on earth,I just know I am sa She____【wish】to talk with me when I am free Hanz gives me a piece of chalk.(Question with What) you can't talk With me Since today i am afraid i can't go fishing with you on monday.____ _____