Past modals of deduction B2

I'm sure he ate some chocolate.

• He must have eaten chocolate

• He can't have eaten chocolate

• He may have eaten chocolate

• He might have eaten chocolate

I already had some food so I ___

• may not have bought any.

• didn't need to buy any.

• didn't had to buy any

• might not have bought any.

I'm sure the dog played in the mud.

• The dog must have played in the mud.

• The dog must played in the mud.

• The dog must have play in the mud.

• The dog must play in the mud.

I'm sure he did it = ?

• He must have done it.

• He can't have done it.

• He must do it.

• He should have done it.

We________ these tomatoes. They had already been washed.

• needn’t have washed

• mustn’t

• needn't had washed

• mustn't have washed

Megan Fox looks different now. Maybe she had a plastic surgery?

• She may have a plastic surgery.

• She could have had a plastic surgery.

• She might have had a plastic surgery.

• She can't have had a plastic surgery.

She ________________ studied really hard. She passed all her exams with great grades.

Rihanna is rich. I'm sure she didn't steal the necklace.

• She can't have stolen the necklace.

• She must have stolen the necklace.

• She may have stolen the necklace.

• She should have stolen the necklace.

My hair was awful! I ______________ looked at the mirror before I left the house.

• might have

• mustn't have

• ought to have

• should have

Maybe somebody scratched my car in front of the supermarket.

• Somebody may have scratched my car in front of the supermarket.

• Somebody may scratched my car in front of the supermarket.

• Somebody may have scratch my car in front of the supermarket.

• Somebody may scratch my car in front of the supermarket.