Thank you for your help. I have 2 more questions.

Which is an independent clause?
when I saw her across the street
I waved frantically
to get her attention
because I wanted to tell her something
I think is is I waved frantically.

Next is which is a dependent clause?
although they live far from each other
Sofie and Mario are best friends
They enjoy the same kinds of games
and watch little television
I think is is and watch little television

The entire clause is "I waved frantically to get her attention."

A clause has a subject and a verb. A dependent clause cannot stand alone.

Study this site and try again for the second sentence.

http://owl.english.purdue.edu/owl/resource/598/01/

I am confused on question one my choices are:

A. when I saw her across the street
B. I waved frantically
C. to get her attention
D. because I wanted to tell her something
I think the answre is B.

The 2nd question dependent clause:

F. although they live far from each other
G. Sofia and Mario are best friends
H. They enjoy the same kinds of games
I. and watch little television
I think the answer is F.

All of the answers for # 1 are wrong. The entire independent clause is "I waved frantically to get her attention."

Your answer for # 2 is correct.

Thanks for your help, but on question one those are my choices A,B,C,D. I guess the best choice is "B".

The computer may only accept B.

I'm sorry you're in this class.

We see a lot of erroneous information and faulty questions from online, for-profit "schools." The question was not written by a professional English grammar educator.

To identify whether a given phrase is an independent clause, you can check if it can stand alone as a complete sentence.

In the first set of options, the independent clause would be "I waved frantically" because it forms a complete thought and can stand alone as a sentence.

Regarding the second set of options, "Sofie and Mario are best friends" is the independent clause as it can stand alone as a complete sentence.

For identifying a dependent clause, you need to identify if the phrase cannot stand alone as a complete sentence but depends on the independent clause to make sense.

In the second set of options provided, "although they live far from each other" is the dependent clause because it does not form a complete thought and requires the independent clause "Sofie and Mario are best friends" to make sense.

Regarding whether "and watch little television" is a dependent clause, it actually is not a clause at all. It is part of the independent clause "They enjoy the same kinds of games" and acts as a coordinated element with "and" connecting it to the other activity.