用介词填空1. The twins are ___school. They are ___Grade One. Look！The girl___the bike is Lucy.

1at (at school) in (在几年级用in) on(the girl on the bike骑自行车的女孩)2.in (in the new dress穿着这新衣服)3. at (look at看) on (on the blackboard 在黑板上)4. of (a picture of ....... .....的一张图、照片)5. in 全句意为： 现在北京啥时候？ 原文链接：//shuzhiren.com/post/81880.html