she is { }in the office and is given most of the work to do

she is {tired }in the office and is given most of the work to do

She is busy in the office and is given most of the work to do.
句子正确，后面的is不用去掉，原句只是省略了she。避免重复

busy 句子有毛病哦 后面的IS去掉