--_______David be the new chairperson of the Birdwatching Society ?--He ________be, but I’m not certain about it.
—When will you return the book to me? —I’ll give it to you _______ I finish it.
—Look at the flowers I gave you last week. They are dying! _______ do you water them? —Sorry, I forgot to water them.
—My parents and I will go to Italy for a trip next week. —Really? _______.
—How many people are there in your family, Eric? —There’re ________. My grandparents, my parents and I.
—When is your birthday, Cindy? —It’s ______ June 1st, Children’s Day.