I need Help finding in understanding to get correct answer

Before we buy our tickets. (1 point)
Before we buy or tickets tomorrow.
Before we buy our tickets, we should check the weather.
We buy our tickets before.
This is a complete sentence. No correction is necessary.
22. Bring money for snacks. (1 point)
Bring money for snacks when we go to the zoo.
Will you bring money for snacks?
You should bring money for snacks.
This is a complete sentence. No correction is necessary.

The oldest animal at the zoo.
At the zoo, the oldest animal.
Saw the oldest animal at the zoo.
The tortoise is the oldest animal at the zoo.
This is a complete sentence. No correction is necessary.

Are you supposed to determine which are complete sentences?

http://www.chompchomp.com/terms/completesentence.htm

We'll be glad to check your answers.

yes

Ms. Sue I Num 1 is B

Study the site I posted. Then post YOUR answers.

Yes. 1 is B.

B, D, and D

I'm numbering and lettering what you posted. Is this correct?

1.
A. Before we buy or tickets tomorrow.
B. Before we buy our tickets, we should check the weather.
C. We buy our tickets before.
D. This is a complete sentence. No correction is necessary.

2.
A. Bring money for snacks. (1 point)
B. Bring money for snacks when we go to the zoo.
C. Will you bring money for snacks?
D. You should bring money for snacks.
E. This is a complete sentence. No correction is necessary.

3.
A. The oldest animal at the zoo.
B. At the zoo, the oldest animal.
C. Saw the oldest animal at the zoo.
D. The tortoise is the oldest animal at the zoo.
E. This is a complete sentence. No correction is necessary.

If I've numbered/lettered them correctly, then your answers are correct.

In the future, it would help greatly if you posted complete questions in addition to what you think the answers are.