We have at( )(little)eighty classes in our school.

应该是：
least
at least 至少
我们学校至少80个班
more
他们另外再需要2张桌子Hurry up.The bus is coming.---Oh,no.We mustn't cross the street()the traffic lights are green.A.after B.since C.while D.until Where is()bike?()bike is here.A.Helen's;Her B.you;My C.Helen's She D.he;His应该是： 1 untillnot untill 句型　　绿灯亮了我们才能过马路 2A海伦的车子在哪儿？她在车子在这里~~~~~~~~~~～～~~~~祝你进步，如对你有帮助，请及时采纳~~~~~~~~~~~~~~~~~~Are these photos()(you),Tom?应该是： yours 你的这些照片是你的吗？ ~~~~~~~~~~～～~~~~祝你进步，如对你有帮助，请及时采纳~~~~~~~~~~~~~~~~~~