You must notice ____ the emergency exit is when you enter the building．

I still remember there used to be _______ underground cave. My friends and I often had fun in_______ 18-foot-deep cave.

The sports shoes must be Linda’s.— No, they _____ be. They’re too small for her.

Everything was placed exactly ____ he wanted it forthe graduation ceremony

wanted to finish our task bynoon,but it didn’t quite _____ as planned.