I feel as though famous could be taken out because its just a describing word, And just there to add detail to the sentence.
Sorry if I'm wrong, really hope this helps!
-Rylee
Answer:
i'm not sure what the question is. If it is to correct the grammar given, then it would be Mario and Judith <u>a</u><u>r</u><u>e</u><u> </u>studying for <u>a</u><u>n</u><u> </u>upcoming science exam.
World to wide I think not that sure