Files and strings in C

Hello friends,
I am a begineer in C language and I have to create a program which perform the following:
The program should takes as input 1 paragraph that is stored in a file (input.txt) and that checks the wording. The program should use the dictionary available in the file (dictionary.txt). And the the program must check the input file word by word and make sure the words exist in the dictionary. If a word contains a mistake it must be corrected. Finally, that program must output to the screen the correct paragraph.

I am really stack, and I really need your help.

Thank you very much

You can use fgets to read a line into a character array. Then youI would string copy the section that I wanted into a second character array. Something like this might work for you:

char* source="1 This is the string 2 3 4";
char destination[26]={0};
strncpy(destination, source+10, 25);
printf("\"%s\"\n", destination);

The output on my system is:

"This is the string "

Thank you for your help.But I have another sugestion:If I use the Tokenizer.