His car's not here. He ________ gone out.

Look how much sugar and salt it's got in it! It________be good for you

Mary has gone out for a while, she_____ be back soon

I'd take an umbrella if I were you. It looks like it_________rain.

We also use _____________ for something happening right now or a possible future arrangement.

It is the last day of registration, you_______ register today.

She's won prizes for her research. She________ be really intelligent.

We were really poor back then, we ______ even afford to buy a bread.

There are three modal verbs which meanings are really similar. You can choose whether to use ______,________,_________ to express the possibility.

We use __________ if we think something is true and ________ if we think something isn’t true.

Rewrite this sentence : It’s possible that it’s Katie.