2. 外语
  3. It is necessary that he_____ the assignment without delay.(2010)

It is necessary that he_____ the assignment without delay.(2010)

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问题 It is necessary that he_____ the assignment without delay.(2010)
选项 A、hand in
B、hands in
C、must hand in
D、has to hand in
答案A
解析 某些表示命令、要求、决定、建议、主张以及“重要性”和“紧迫性”等概念的主语从句中，谓语动词要用虚拟式(should)do。
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