Are you free Yes,I am,A .on this SundayB.in this Sunday.inC.this SundayD.at this Sunday我不知道哪个是对的...

问题描述:

Are you free Yes,I am,
A .on this Sunday
B.in this Sunday.in
C.this Sunday
D.at this Sunday
我不知道哪个是对的...

选A. I am free on this Sunday