國中英語基測出現過 at 的考題。

1.
From the ad, which is true about Sunny Sun pictures?
You cannot use Sunny Sun pictures to get free desserts.
The first day to use Sunny Sun pictures is Feb. 4.
The last day to collect Sunny Sun pictures is Feb. 10.
You cannot get Sunny Sun pictures when you buy books.
2.
Sammy has 7 Sunny Sun pictures. She wants to get a Sunny Cup. How can she get one?
Spend $200 to get 4 more Sunny Sun pictures.
Use 6 Sunny Sun pictures and pay $100.
Spend $150 to get 3 more Sunny Sun pictures.
Use 6 Sunny Sun pictures and pay $200.