—Is this          pen, Tim? —No. It’s Mary’s.

---Have you finished your work yet?　---No, not yet. I think it’ll take _____ ten minutes.

—Which would you like to drink, coffee or orange juice?—___________. Please give me a cup of tea.

--- Whose names are these, ________ or yours? ---_______. I don’t know all of the students in Class 5, so I have _______on this piece of paper.

I feel              hard to work out this problem.