20.How much does it/do they cost? 它/它们多少钱?
19. again and again 一而再、再而三,不断
18.make mistakes 犯错误
17.go over 复习
16.in the right order 以正确的顺序
15.take photos/pictures 照相
14.in different shapes 以不同的形状
13.fill in 填充
12.in a hurry 匆忙地
11.be close to 靠近.在……附近