I have no idea what you mean by "checkout of a text", but slang apart, the words form simply a phrase, neither sentence nor clause.
My cashier at the store forgot to give me my checkout slip.
Quickly, run to the checkout before Wikianswers is swamped with idiotic answers!
It's incorrect. In this sentence "Test" is the object. Therefore it must be put into the accusative.The correct sentence should be:" Der Lehrer verbessert den Text".
The credit card was invalid; it was not approved at checkout.
That is correct.
"How are you" is a correct sentence.
Yes, this sentence is correct.
To cite a source in MLA in-text, you should include the author's last name and the page number where the information is found in parentheses at the end of the sentence.
You are palpitating. This is a correct sentence.
With the exception of not capitalizing the 'y' at the start of the sentence, it is a correct sentence.
That sentence is grammatically correct.
no it is not a correct sentence.