—What is the result of the survey?—15% of those surveyed worry that in the long term children _________ be more dependent on their parents, which does no good to them.

(2013·江西九江二模)If you won't do as I tell you, you ________ get the chance to be promoted because the competition is just too fierce.

－Is that Mary?－No, it _______be her. She has gone to Tokyo. 

- You talk so much about London. You ________have been there. - Yeah, I went sightseeing on a tour last summer.

--What do you think of the book you borrowed from the library yesterday?  --I have no idea. I____________ read it.