There is ______ on the playground. [ ] A
题型:选择题
问题:
There is ______ on the playground. [ ]
A. a groups of peoples
B. a group of people
C. groups of people
D. group of people
There is ______ on the playground. [ ]
A. a groups of peoples
B. a group of people
C. groups of people
D. group of people