There are many _______ playing on the playground. 
#29829
A
child
B
children
C
man teachers
D
sheeps
推荐题目
Tom is a policeman and ______don’t like him.
#29619
A
thief
B
thieves
C
thiefs
D
thiefes
 Can you imagine what the world will be like in ________ time?
#27901
A
30 years’
B
30 year’s
C
30-years
D
30-year’s