Bare infinitive/"to" infinitive

Luckily, this is the last question ____ be asked.

There's hardly anything ____ do but ____ learn the grammar rules!

Why not ____ have a rest?

We cannot but _____ agree with you otherwise we won't be able ____ solve this problem.

This lady was seen ____ be planting tulips in her garden.

Could you hear the child ____ cry alone in the room?

Let's have him ____ tell the truth!

I've never known him _____ play football so well.

Who made you ____ buy these shoes?!

Her husband was made _____ sell their car.