Answer:
Please say where the question is from....
Explanation:
Some people wouldn't get it.
Answer:
B. because it travels at a speed beyond Mach 5
Explanation:
according to NASA it has mach of 9.6
Answer:
The answer is D) When
Explanation:
At first indicates that something happened first.
Last indicates that something is the last thing being said in a sequence.
Next shows that something comes after another.