问题
选择题
I can't wait ____ the present box. [ ]
A. open
B. to open
C. opening
D. opened
答案
答案：B
搜题请搜索小程序“爱下问搜题”
I can't wait ____ the present box. [ ]
A. open
B. to open
C. opening
D. opened
答案：B
缺失，缺牙区牙槽嵴条件好，牙龈萎缩，近中舌侧倾斜，前牙区口底较深，
基牙，行大支架连接的可摘局部义齿修复