Degrees of Certainty

Does the following sentence express certainty or not?

If I hurry up, I might make it.

• certainty

• uncertainty

Does the following sentence express certainty or not?

After eating all that you can't still be hungry.

• certainty

• uncertainty

Does the following sentence express certainty or not?

They will probably be extinct in a few years.

• certainty

• Near certainty

• uncertainty

Select the best fitting modal verb.

They still haven't arrived yet, they _____ not know the way.

• can

• might

• will

Select the best fitting modal verb.

He studied so hard last night, he ____ do well on his test.

• can

• might

• must

Fill in the best fitting modal to match the degree of certainty.

I have checked that room already, I'm quite sure your phone ____ be there.

Fill in the best fitting modal to match the degree of certainty.

Bob always goes to school by train, now he is late he perhaps _____ have missed his train.