modals of deduction

Oh no, my car won't start. It _____ out of gas.

We're not sure if this painting is an original. It ________________  worth thousands of dollars.

He's very strong, he can lift 300 pounds. He _____ go to the gym a lot.

Susan is telling everyone her password. It ______ a secret.

My brother never passes his exam. He ______ be studying very well.

The remote control isn't working. We _____ need to change the batteries.

He's working full-time and studying. That ________________  easy.

Wow! Look at that diamond necklace. It ________________  a fortune.

He plays basketball very well, he ______ practice a lot.

You ________________ be right - but I'm going to check to make sure.

Who is that? It ______ David, he already left for the day.

Michelle ________________ want to participate in the festival - it seems like the type of thing she's interested in.

He worked hard on his report, and then accidentally deleted the file from his computer. He ________________  upset.

Why are they running? They _____ late or there ______ an emergency.

She goes camping every weekend. She ________________ really love the outdoors.

You just ate a huge dinner! You ________________  hungry again already!

I ________________  be able to go to the football game. It depends on whether I can get the afternoon off from work.