Question

choose the type of loop that works best for the situation. when you know ahead of time how many passes you will make through a loop, a(n) loop is best. such a loop uses

Explanation:

When the number of loop - iterations is known in advance, a for - loop is typically the best choice. For - loops use a counter variable to control the number of times the loop body is executed.

Answer:

First blank: for
Second blank: a counter variable