Level 46: It is a top secret. You _________tell anyone about it.
Modal verbs + V (bare-inf)
– won’t: won’t
Eg: If you don’t have a birthday party, you won’t get loads of cool presents.
– needn’t: don’t need
Eg: You needn’t buy so much food.
– mustn’t: not allowed to do anything (obligatory) # don’t have to: not necessary to do (do or not do)
Eg: You mustn’t use the car without a driving license. It’s against the law. (You can’t use a car without a driver’s license. It’s against the law.)
You don’t have to drive. I can do it. (You don’t have to drive, I can.)
– mightn’t: maybe not
Eg: Don’t panic – it mightn’t be true (Don’t panic, it might not be real).
=> Answer B (It’s a top secret. You mustn’t tell anyone about it.)
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