全瓷贴面在前牙唇面的牙体磨除量为（）
A.0.3mm
B.0.5mm
C.0.8mm
D.1.5mm
E.2.0mm
参考答案：B
I felt very tired when I got home, and I ______ straight to bed.
A．go
B．went
C．had gone
D．have gone
