Friendship

To make the exercise click in the link bellow:
Modal verbs
http://www.autoenglish.org/gr.may3.pdf

Simple Past
http://www.autoenglish.org/tenses/gr.pastsimple.pdf

Some, any and no
http://www.autoenglish.org/gr.anything.pdf

Going to or Will
http://www.autoenglish.org/tenses/gr.gowill.pdf