Thenewteacherrequiredthestudents_totheclassroom20minutesearlierformorningreading.1came2wouldcome3shouldcome4mustcome不是很懂~

问题：Thenewteacherrequiredthestudents_totheclassroom20minutesearlierformorningreading.1came2wouldcome3shouldcome4mustcome不是很懂~

答案：↓↓↓

宋海生的回答：

网友采纳　　C　新老师要求学生们提前20分钟到教室早读.　　suggest,require,demand,order,insist等词引导宾语从句要求用虚拟语气,既should+动词原形,should可省略