I ________ myself more— it was a perfect day.

--Do you know________ this dictionary belongs to? --Let me see. Oh, it’s__________.

You ______ wear sports shoes when you climb a mountain.

It has been announced that students         remain in their seats until all the papers have been collected.

—Why didn’t you come to Simon’s party last night?—I wanted to, but my mom simply _____ not let me out so late at night.