阅读下列短文，从每题所给的四个选项（A、B、C和D)中选出最佳选项。
A
Here is an ad for Sunny Market.
From Jan. 4 to Feb. 4, for each $20 you spend (on anything EXCEPT books, magazines and CDs) at Sunny can get one of the prizes below Market , you'll get a Sunny Sun picture.
(2 pictures for every $40,3 pictures for every $60,...)
Sunny Cup Chocolate
★ Collect 12 pictures, and you can get a Sunny Cup for free!
★ Collect 10 pictures, and you can get any of the desserts on the right for free !
★ Collect 6 pictures, and you can buy a Sunny Cup for $5, or any of the desserts on the right for $2!

From Jan. 4 to Feb. 10, you can use Sunny Sun pictures to get Sunny Cups or desserts.

With Sunny Sun pictures, you can get one of the prizes below for free or at low prices!!
Sunny Cup             Chocolate             Fruitcake               Ice cream
                                
Here is Tom's receipt(收据）from Sunny Market.
Sunny Market
123Sullian Street
www.Sunnymarket.com
Jan.25.2021                   8:32 a.m.
Chocolate                     $19.99
Book                         $29.99
Shoes                         $52.39
Ice cream                      $8.99
Total                          $111.36
____________________________________
Thank you for your business!
16. When can people collect Sunny Sun pictures?
A. From Jan.4 to Feb. B. From Jan.4 to Feb.10.
C. From Jan.10 to Feb.6. D. From Jan.10 to Feb.10.
17. Sammy has 10 Sunny Sun pictures. What can she get for free?
A. A fruit cake. B. A Sunny cup. C. A magazine. D. A CD.
18. How many Sunny Sun pictures can Tom get according to his receipt ?
A. Seven. B. Six. C. Five. D. Four.
答案：AAD