這麽說

我現在手上有A，B,C，D要做

A的deadline 是xx
B的deadline 是xx
C的deadline 是xx

D的deadline 是xx

如果你讓我做某某工作，我會Miss deadline, as it takes xx to get A done, Xx B done..

Give him/her a big smile and say "you decide which one should be prioritised "