问题
选择题
—How many students are there in the room?
—There aren't ______. [ ]
A. some
B. any
C. one
D. it
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—How many students are there in the room?
—There aren't ______. [ ]
A. some
B. any
C. one
D. it
答案：B
缺失，余留牙稳固。要求可摘义齿修复。