连词成句。

1. a, or, we, car, have,a, didn't, telephone (.)

2. Beijing, I, in, last, lived, year (.)

3. did, you, weeks, what, do, three, ago (?)

4. very, miss, my, much, I, mother (.)

5. read, write, Mary, or, can, not (.)

上前牙的上下定位可依据（）

A．面部中线

B．笑线

C．口角线

D．堤平面

E．牙槽嵴顶线