2. 职称英语
  3. All ______ is needed is a supply of oil.A、the thingB、thatC、whatD、whichB本题有两个

All ______ is needed is a supply of oil.A、the thingB、thatC、whatD、whichB本题有两个

游客2025-07-28  14
问题 All ______ is needed is a supply of oil.
选项 A、the thing
B、that
C、what
D、which
答案 B
解析 本题有两个不是并列关系的谓语动词，其中肯定有一个是从句的谓语。据题意可知，主语all带有一个定语从句。先行词为不定代问all时，关系代词要用 that，不用which，故选B。what不能引导定语从句，只能引导名词性从句。这句若无all，则要用what。
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