I can’t leave. She told me that I _______ stay here until she comes back.

As it turned out to be a problem of no importance , we     so much time looking into it . 

It’s funny that Howard___ speak to you like your boss. 

--Is that Wenfeng Road over there? --It ________ be, I’m not sure.

It has been announced that students         remain in their seats until all the papers have been collected.