Modal Verbs

Alana ___________ the tickets to Ecuador last week. She asked me about prices. (Guessing)

• couldn't have bought

• may have bought

• I don't know.

Ahmed _________ from Oman. I saw his passport earlier. (The only logical conclusion)

• must be

• could be

• I don't know.

I _________ my passport on the way home from work. It was in my pocket when I left work, and then it wasn't there when I got home. (the only logical conclusion)

• might have lost

• must have lost

• I don't know.

Jan's new company _________ her to Dubai next week. They do a lot of international business, and she thinks a large meeting is happening in the next ten days. (guessing)

• might send

• must send

• I don't know.

My new smartphone _________ from Tahiti. There isn't a big smartphone industry there. (impossible)

• can't be

• must be

• I don't know.

Luis _______ in South Korea for a while. He speaks fluent Korean, and I saw a Korean company on his CV. (the only logical conclusion)

• may have lived

• must have lived

• I don't know.