_ you have seen both fighters,______will win．

You _______ get the book on condition that you give it back to me on time.

o pens are the same, but the red onecost _____________ that one.

He hurried to the booking office only ______ that all the tickets had been sold out.[ ]

As a teacher rich in experience, he knows how to ____ his ideas to these new students in a limited period of time.