Choose the sentence in which the modal has been used incorrectly:

The correct answer is Option (4) → My father uses to read the newspaper aloud every morning.

Used to has no present form:

• The given sentence says “My father uses to read”.
• Used to + base verb (the simple form of the verb, like go, eat) shows a past habit that has stopped.
• It is used only in the past, so “uses to” is wrong.
• Corrected: My father used to read the newspaper aloud every morning.

Why the Other Options are Incorrect?

Option 1: You may use my scientific calculator during the practice test. This sentence is correct. “May” gives permission here and takes the base verb “use”.

Option 2: Meena should tell her parents about the broken vase. This sentence is correct. “Should” gives advice here and takes the base verb “tell”.

Option 3: Shall we take the earlier train to Agra? This sentence is correct. “Shall” with “we” makes a suggestion and takes the base verb “take”.