Each question has a statement followed by two items (I and II). Decide which of them is valid and choose from: only I, only II, either I or II, neither I nor II, or both I and II. An assumption is something the speaker takes for granted — something that must be true for the statement to make sense.
1Tests
Negate the assumption: if the statement then becomes pointless, the assumption is implicit
Advertisements assume people want the benefit and notice adverts
Extreme assumptions (all, never, only) are rarely implicit