Fill in the blanks with suitable Modals. Choose the correct option from below :
As my son is lagging behind in his studies he ________ attend the class regularly.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → must
Complete sentence: As my son is lagging behind in his studies he must attend the class regularly. The son is lagging behind, so attending class regularly is necessary for him: he must attend.
| Option | Meaning and use | Example |
|---|---|---|
| (1) could | Could expresses past ability or a polite possibility. It does not show that attending is necessary. | She could swim when she was five. |
| (2) can | Can expresses ability or permission. The sentence is about need, not ability. | He can speak three languages. |
| (3) may | May expresses possibility or permission. "He may attend" makes attending optional, which does not fit the reason given. | It may rain this evening. |
| (4) must (answer) | Must expresses necessity or strong obligation: something has to be done. | You must wear a helmet while riding a motorcycle. |