Modal Verbs: might, could, and must.

The lights in Sarah's room are off. She ______ be sleeping.

• must

• might

• can't

David speaks perfect French. He ______ have lived in Paris.

• can't

• must

• may

Emma hasn't replied to my text. She ______ her phone at home.

• might have left

• must have left

• can't have left

That man is wearing a lab coat. He ______ be a scientist.

• can't

• must

• could

The restaurant is empty. It ______ be very popular.

• must

• can't

• may

Leo scored 100% on the test. He ______ have studied hard.

• must

• might

• can't

The keys ______ be in the car. I remember locking it.

• must

• can't

• could

Lucy loves dogs. She ______ be the one who adopted the stray.

• must

• might

• can't

The ground is wet. It ______ have rained last night.

• must

• can't

• may

Jake is allergic to nuts. He ______ have eaten the cookies.

• must

• can't

• could