网址：http://m.1010jiajiao.com/timu3_id_2462156[举报]
All ____ is needed is a supply of oil.
A. the thing B. that C. what D. which
All ______ is needed is a supply of oil.
A the thing B that C what D which
All is needed is a Supply of oil．
A．the thing B．that C．what D．which
All ________ is needed is a supply of oil.
[ ]