Why not go swimming with me this evening?I'm so tired after____work,so I have to have a good rest.A.four hours'B.four hoursC.four hour'sD.fourth hours'
问题描述：
Why not go swimming with me this evening?I'm so tired after____work,so I have to have a good rest.
A.four hours'
B.four hours
C.four hour's
D.fourth hours'
答