for the critical review essay you are to choose two poems, short stories, essays, or novels. Whatever you choose they must have a similar theme. State the theme for both stories in your introductory paragraph. In the body paragraphs provide text based evidence to support your theme. There recordings posted on the message board for the Critical review essay.

please help me choose two poems, short stories, essays, or novels

What have you read, or what is available in your anthology or otherwise assigned or recommended reading materials?

will i read concrete mixers, harlem night song, The city is so big. this are poesms but i'm not sure if they have a lot of things in common

http://patayon.blogspot.com/2012/11/concrete-mixers-by-patricia-hubbell.html

and
http://patayon.blogspot.com/2012/11/the-city-is-so-big-by-richard-garcia.html

Go for it!

but do they have a lot of similarities

Have you read them???

What do you think, after reading them? Have you actually read them?

yes

Are both poems about cities? What do they say about cities? Or is one of them about flowers in spring and the other about life on a ship?

they both have Big buildings, streets, and bridges depend upon concrete mixers.