My grandfather_____.He is still very tireds.a.has just come back b.has already come back c. have yet come backd.have just come back

问题描述:

My grandfather_____.He is still very tireds.
a.has just come back b.has already come back c. have yet come back
d.have just come back

b.has already come back
alredy表示已经的意思啊