You are still setting up the trap for your friend, type in the command to fill the command block.

(Hint: Pure black particles. If you know what effect has those, type in the effect command with the effect!)

(You do not need to put in the duritation or effect strength)

(a)  

You are having a party for your friend's birthday in Minecraft. You have a lack of resources to make a cake, you give yourself a cow by summoning it.

Type in the command with it's code to succesfully summon it.

(a)  

You've seen particle effects on players in servers, and you want to get that in your world. You type in the command into a command block after studying.

Type in the command that gives out the particle effect on a player.

(Hint: the execute string goes first, and the victim code is "@r", and the particle string is totem_particle.)

(a)