题目内容
6、All is needed is a supply of oil.
A. the thing B. what C. which D. that
试题答案
6、D
All is needed is a supply of oil.
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.
All ________ is needed is a supply of oil．
A．the thing
B．that
C．what
D．which