填空题 School counselors (are convinced) that it will be obligatory that everyone (must have) (some computer training) in order to (enter) the job market. A. are convinced B. must have C. some computer training D. enter
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【正确答案】 1、B    
【答案解析】改为have。obligatory引导的从句需用虚拟语气，结构为(should) do。