Why did the narrator leave his brother behind? from the scarlet ibis

a. he was angry at doodle for failing him

b. he was testing doodle to see if he would catch up

c. he was proud that his brother was able to run without

d. he didn't realize that doodle had fallen behind until he stopped and looked back

C. he was proud that his brother was able to run without help.

Explanation:

He made a training program for his brother. He eventually learned how to walk using it. So he was proud he learned how to walk

b

Explanation:

since the narrator was so proud that doodle was able to walk, he thought that he might able to catch him.

a complex sentence consists of an independent clause and one or more dependent clauses.  

to write complex sentences, we must use subordinating conjunctions.  

all the complex sentences begin with a subordinating conjunction and when it occurs, a comma must be place at the end of the dependent clause. on the contrary, if the sentence begins with an independent clause, then no comma is used.

after  

although  

as  

because  

before  

if  

since  

when  

for example,  

after she won the competition, she became very popular.  

although my father was hurt, he continued fighting for his rights.  

as all of you got a ten, you will be able to leave early today.  

before he went to the war, he asked his parents to bless him.  

if it is cold, i won’t go out.  

since you didn’t bring the homework, you will get low grades.  

when it is hot in the town, everyone goes to the beach.