Stop writing. It’s time that you ___ your papers. A must hand in B have to hand in C handed in选啥
问题描述：
Stop writing. It’s time that you ___ your papers. A must hand in B have to hand in C handed in选啥
具体解释下原因 谢谢
答
C
结构：It's time that + 一般过去时 “ 该做某事了”
不明白的再问哟,请及时采纳,多谢!