What _____ he doesn’t come to your party?—Well, I don’t mind.[ ]

Miss Green’s new dress looks smart. —I wonder what it was of.

Whose shirt is this?—It ______ be Li Lei’s. It is too big for him.

My mum was born ______ May 2nd, 1971. [ ]

Mr. Wu said he ______ us to the zoo the next week.