12. I'm glad that the CDs have taken off so well.
我非常高興CD的銷路很好。
還能這樣說：
I am very happy about the well selling of our CDs.
I am pleased to see that our CDs sell well.
應用解析：
glad to do sth. 高興做某事，愿意并熱切要做某事；
glad rags 慶祝場合穿的衣服；
I would be glad if 常用于反語中，要是……的話我將非常高興；
a glad occasion 喜事

13. We should change the packing to attract more customers.
我們應該改變包裝以吸引更多顧客。
還能這樣說：
The change of the packing can pull more customers in.
Changing the packing can make more customers pay attention to our products.
應用解析：
change front 改變論調；
change into 變為，使改變；
change over 大幅度改變，完全改變；
change side 改變立場

14. Our booth should be more conspicuous.
我們的展臺應該更加醒目。
還能這樣說：
We should make our stand more eye-catching.
Our stand should be set for all people to see.