Thank you for answering, Ill check this out.

Just worried about the literacy side. In Brazil we have lots of illetrate and poorly schooled people - I know it sounds weird, but Im not sure if everybody knows what a circle or a square is and we dont want to mess it up language dificulties and literacy dificulties.

For the oral part , for example, we've been using MAC. It has questions like: "This kid is a popcorn - what does it mean?" and "Boy ang girl are leaving the grocery store, both of them are carrying bags. The girl says: my bag is really heavy - what does she really mean?" (in this case, because the focus is on oral language, we read everything for them). So thats kinda reading/writing test Im looking for now, I hope Token Test can help us in some way, Ill definitely check this out ;). Thank you again.

IMHO, this is very difficult to objectively evaluate; there are certainly a number of language tests that claim to measure aspects of everyday language. However, "everyday language" is spontaneous; the subject must "structure" the communication on his/her own; all tests add an element of structure which can easily interfere with identification and measurement of everyday language communication; obviously, there are clearly numerous other factors that can complicate the matter, some of which have already been mentioned in other answers. Anyway, I also believe it is critically important to conceptualize "language" from a neuroanatomic model; see Ullman and colleagues for numerous papers describing the Declarative-Procedural model of language function, describing a dual-tiered neurobiologically situated model dependent upon cortical-basal ganglia interactions; this model might help guide the way in establishing a framework for your question.

There are several relevant papers; the system seem to accept one attachment at a time.

Here is another.

Sorry for the double paper. here is another.

And another sample. same heading, different paper.