老师不应给学生施加过度的压力。

Teachers should not put ___undue pressure on students.

他因为一次小小的迟到受到了过分的责备。

He received ___undue blame for being just a few minutes late.

这笔款项目前还未到期，所以不需要现在支付。

The payment is currently ___not due, so there's no need to pay it now.