用英语写的校规,急用!
问题描述：
用英语写的校规,急用!
要求:3句肯定,3句否定,其中几句用上 have to ,showldn't ,mustn't .
答
We have to wear uniforms in the school.We shouldn't run in the classroom.We mustn't sleep in the class.We should speak English on the English class.We should switch off the lights before we leave the ...