英语名词练习
14.Hehada___sleepyesterday.
A.agoodnightB.agood-night
C.agoodnight’sD.good-night’s
15.___isnotalongwaytodrive.
A.ThreemilesdistanceB.Three-miledistance
C.Threemiles’distanceD.Athree-mile-distance
能和我说一下加“-”在什么情况下,有什么格式?