21（2011·吉林实验中学高三二模）---John, there is _____ Mr．Wilson on the phone for you.
---I’m in _____bath.
A．a ; the B．the ; a C．a ; 不填 D．the ; 不填
22（2010·河北省正定中学三模）8 To help myself get to sleep, I have tried several ways but it seems that _______works．
A．nothing B．none
C．neither D．all
