Choose the correct option to fill in the blank:
“Check your answer again, Pooja,” said the teacher. “Seven times eight ______ be 48. It is 56.”
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → can’t
Complete sentence: “Check your answer again, Pooja,” said the teacher. “Seven times eight can’t be 48. It is 56.” The teacher knows the right answer is 56. So she is sure that 48 is wrong.
| Option | Meaning and use | Example |
|---|---|---|
| (1) must | a strong guess that something is true | The lights are on, so they must be at home. |
| (2) might | a weak possibility, when we are not sure | Take a sweater, as it might get cold later. |
| (3) should | advice, or the right thing to do | You should read the question twice before you answer. |
| (4) can’t (answer) | can’t + base verb (the simple form, like go or eat): we are sure that something is not true | This can’t be Neha’s bag, as hers is red. |