I hear our teacher will be back__three week's time

I hear our teacher will be back__three week's time I hear our teacher will be back ____ three week's time. I hear our teacher will be beck_______three weeks'time. A.at 选择：I hear our teacher will be back ---- three weeks' time. A I hear some ——(foreign) will visit our school next week our math teacher （为了）Beijing for a week.She will be back in I will enjoy my holiday this time next week.和I will be enjoy Les't go to the teacher's office.I will ask our teacher a q_ If you're so,so I do not promise next time will be soft-hear I will be a teacher Our school ___the autumn sports meet next week.I will be in I like her very much.I hope she will be our teacher forever.