当前位置: 首页 > 问答 > 精选 > 正文
问题
It is essential that these application forms _____

It is essential that these application forms _____________ back as early as possible.

       A) must be sent                                              B) will be sent

       C) are sent                                                     D) be sent

 

参考答案

D. be sent   虚拟语气,be前省略了should


您可能感兴趣的试题
  • It is essential that these application forms ?

  • It is essential that misunderstanding ______ during business negotiations.A.be avoidedB.is

  • It is essential that the glass ______ thicker on the outside than on the inside and that t

  • It is essential that he_____all the facts first.(2014)A.is examiningB.will examineC.examin

  • It is essential that he______all the facts first.A.is examiningB.will examineC.examinesD.e

  • The opening ceremony is a great occasion. It is essential______for that.(2003年考试真题)A.