四、找规律，将正确的数字选项填入图中。
1. ten → → twelve → → fourteen
2. twenty → eighteen →
A. sixteen B. thirteen C. eleven D. nineteen E. seventeen

1. C B 2. D E A

五、为下列图片选择相应的对话。
()1.
()2.
()3.
()4.
A. —How much is this toy car? —It's seventeen yuan.
B. —How much is this bag? —Twenty yuan.
C. —How many toy boats do weve? —We have sixteen toy boats.
D. —How many books do we need? —We need twelve.

1. B 2. D 3. A 4. C