A group of children hide and seek in the garden.
A. is playing
B. are playing
C. has been playing
D. was playing
网友回答
A. is playing
(答案→)B. are playing
C. has been playing
D. was playing
解析：考查时态及主谓一致。句意：一群孩子们正在花园玩捉迷藏。结合语境可知描述的是现在正在进行的动作，故用现在进行时态，主语为复数形式，故谓语动词用复数形式。选B。