Answer:
1) slow down your pace.
2) slow down!
3) please slow down.
4) please slow down your pace.
Explanation:
There are quite a few ways to make this an imperative sentence.
By the way, you don't have to add "please" at the beginning, it just softens the sentence a little (it sounds less commanding)
Answer:
Milagros smiled widely and accepted the award
Explanation:
The second one because since the first one has which. Which is a conjunction so it can be a compound sentence.