这个购物应用有很多商品。

This shopping ___app has many items.

我用这款购物应用比较价格。

I use this shopping ___app to compare prices.

我在手机上下载了一个学习英语的应用程序。

I downloaded an English learning ___app on my phone.

他刚寄出了研究生项目的申请。

He just submitted his ___app for the graduate program.