B1 BE Modals of deduction and probability

She ______ be a good leader: she’s indecisive, insecure and she lacks necessary soft skills.

• can't

• mustn't

• both

I have a suggestion that you ______ not agree with.

• may

• might

• both

John didn't say why he wasn't at work. He _____ be ill.

• might

• must

• both

My colleague ______ have the information you are looking for, but I’m not sure.

• may

• must

• both

The price of solar panels ______go up due to the action against China.

• might

• could

• both

This watch is so expensive. It _______ be shatterproof and waterproof. 

• may

• must

• both

The town is not densely populated. There _______ not be many traffic jams.

• can't

• may

• both

Wow! Look at that diamond necklace. It ______ cost a fortune.

• could

• must

• both

You ______be right, but I'm going to double check to make sure.

• may

• might

• both

He's working full-time and doing his Ph.D. That _______ be easy.

• can't

• might not

• both