作业帮The students are called ________ one by one to take the exam.in up on off
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The students are called ________ one by one to take the exam.in up on off
The students are called ________ one by one to take the exam.
in
up
on
off
The students are called ________ one by one to take the exam.in up on off
in 学生们被一个一个的叫进去参加考试
in
选in吧，call in有把某招进来的意思。