问题
选择题
A number of students_____ playing on the ground but I don't know what the exact number______.
[ ]
A. are; is
B. are; are
C. is; is
D. is; are
答案
答案：A
搜题请搜索小程序“爱下问搜题”
A number of students_____ playing on the ground but I don't know what the exact number______.
[ ]
A. are; is
B. are; are
C. is; is
D. is; are
答案：A