(1)--Lend me some more money,will you?

(1)--Lend me some more money,will you?
--Sorry,I've got _____at hand myself.You know the MP3 player cost me all I had just now.
A.nothing B.no C.none D.not
为什么不选A?
(2)--I wonder how much you charge for your services.
----The first two are free _____the third costs $30.
A while B until C when D before
为什么不选