“Why couldn’t they meet us at five o’clock?” “Because they were delayed by ________.”
A.heavy traffic | B.heavy traffics |
C.crowded traffic | D.crowded traffics |
推荐套卷
“Why couldn’t they meet us at five o’clock?” “Because they were delayed by ________.”
A.heavy traffic | B.heavy traffics |
C.crowded traffic | D.crowded traffics |