—Look at the picture on the wall. It ________be David’s.
—Yes, his name is on the first page.

－May we start the meeting now?
－No, we________ . We__________ to start until the manager comes.

Today, we _____ work as hard as people did in the past.

— May I take the magazine out of the reading room?
— No, you can’t. You _________ read it here.
It’s the rule.

—We will go to the Wushan Square this afternoon, why not take a bus?
—We ________ take a bus , it’s only one kilometer or more.

--Have you decided where to go for your summer vacation?
--Not yet. We_________ go to Mount Lu. It is a good place for vacation.

-- _____ I ask you a question, Mr. Wang?      -- Yes, you _______.

With the help of the new technology, you __ e-mail your friends by mobile phone.

This toy Mickey Mouse _______be Amy's. she's the only kid at the picnic.

—Look! A book is on the floor. Whose is it?
—It ______be Rick's. It has his name on it.