Can I have ____?
___もらえますか?

Here you go!
どうぞ!

Can I have an apple?
りんごをもらえますか?
動画はこちら

Can I have a banana and lemon?
バナナとレモンもらえますか?
ムービー(2017-08-09 午後5.51) #3

Can I have 2 apples?
りんごを2つもらえますか?
ムービー(2017-08-09 午後5.52)