Modals for speculating

Which sentence is correct: Fiona is wearing designer clothes. She __ be rich.

• may not
• may
• can't

Which sentence is NOT correct: James doesn't know how to get to Oxford Street. He ___ live in London.

• can't

• might not

• may

Which sentence is NOT correct: Mike has been working all day. He ___ be tired.

• can't
• may
• must
• might

Miriam talks about clothes all the time. She __ be really into fashion. (I'm sure she is)

• might
• could
• can
• must

Robert has dyed his hair blond. He ___ to be a hairdresser. (Perhaps he is)

• might train
• may be training
• must train
• must be training

Janet never wears earrings. She ___ jewellery. (Perhaps she doesn't)

• may not like
• may not be liking
• mustn't like
• can't like

Peter looks fantastic. He ___ for a new girlfriend. (Perhaps he is)

• can be looking
• must look
• could be looking
• must be looking

Mary never goes out. She ___ a lot of friends. (I'm sure she doesn't)

• might not have
• can't have
• may not be having
• can't be having

Mark is wearing white shoes. He ___ them every day. (I'm sure he does)

• must clean
• must be cleaning
• may clean
• may not be cleaning

Eva is a very good student. She __ be lazy. (I'm sure she isn't)

• must
• can't
• might not
• may