2. 外语
  3. The course leader requests that all (theses) (are) handed (in) before 5:00 p.m. (next Friday).

The course leader requests that all (theses) (are) handed (in) before 5:00 p.m. (next Friday).

admin2010-12-06  49
问题 The course leader requests that all (theses) (are) handed (in) before 5:00 p.m. (next Friday).
选项 A、theses
B、are
C、in
D、next Friday
答案B改为be
解析 request引导的从句中需用虚拟语气，结构为(should) do。
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