问题详情

A．The most important thing for her at the moment is to review the homework for the exam.
B．The most important thing for her at the moment is to prepare for the vocation.
C．The most important thing for her at the moment is to decide where they will spend their vocation.
D．The most important thing for her at the moment is tomorrow" s exam.请帮忙给出正确答案和分析，谢谢！