义齿修复前骨尖修整的最佳时间是（）
A.拔牙后1周
B.拔牙后2周
C.拔牙后3周
D.拔牙后1～2个月
E.拔牙后1年
参考答案：D
It’s already 12：00．I’m afraid we’11 have nothing to eat in the school dining room．
一You shouldn’t worry about _______to eat．Millie has ordered some food for us．
A．having something
B．not having anything
C．have nothing
D．not have anything
You want it, we have it ___ a very good price.[ ]
A. for
B. at
C. of
D. in
