Get up! Mary. Tom has___called you three times this morning. a yet b alread

already

用 already,表示已经完成的动作

yet 一般用在句尾,表示一种应该做但还未做的事物

比如 I haven't finished my homework yet.
我还没做完我的家庭作业.

already yet是用于否定句中的且一般用于句尾

already.