A．搞好教学工作B．做好思想品德教育工作C．全面关心学生的健康D．监督学生的学习E．评定学习成绩教师主要通过做……

单项选择题— ______ —Yes, a bit cold, though.

单项选择题No sooner had we reached the top of the mountain ______ we all sat down to rest.

单项选择题I don't think it advisable ______.

单项选择题—Let me introduce myself. I'm Albert. —______.

单项选择题It is foolish ______ such a mistake.