2. 外语
  3. It is necessary that a student______his lesson before coming to class.

It is necessary that a student______his lesson before coming to class.

admin2009-08-15  68
问题 It is necessary that a student______his lesson before coming to class.
选项 A、will prepare
B、prepares
C、must prepare
D、prepare
答案D
解析 It is necessary that后面要用虚拟语气。所以选D。D选项等价于should prepare。
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