Whoever has finished the task ahead of time will be rewarded though we dont know who_____

学历类 专四 已帮助 人

Whoever has finished the task ahead of time will be rewarded, though we dont know who______will be.

A.it

B.they

C.she

D.that

请帮忙给出正确答案和分析,谢谢!

热搜:已知Mg的相对原子质量为24.305,F=96485库伦/摩尔=26.8Ah/m