Tom wants to know if you ___ a picnic next Sunday.—Yes. But if it ___， we’ll visitthe museum instead.

It seemed to me that she was in doubt ________ Timmy lived or died.

Class is over. It’s time ______ you ______ a rest.

I looked up and noticed a snake ______ its way up the tree to catch its breakfast, ______ scared me away.

Are these your books — ________.