When you are done with the book，just give it to Lucy or Helen or ________. 

I would appreciate________, to be frank, if the goods could be delivered as soon as possible.

--John, when shall we meet again, Thursday or Friday? --___________.I’ll be off to London then.

I get the bicycle for _____.My friend gave it to me when she bought a new one.

___doesn’t seem to have been any difficulty solving the problem.