用冰槽降温时，为保护角膜，双眼应覆盖

A．干纱布 

B．红霉素纱布 

C．石蜡油纱布 

D．凡士林纱布 

E．氯霉素眼药水纱布

选用括号中适当的代词填空

1. Is this________eraser? ( he, his )

2. Is_________( she, her ) Mrs Li ? Yes.

3. That's________( my, I ) pencil.

4. Is that _________( you,your ) dictionary? No,_______( it, its ) isn't.

5. Can ________spell_______name? ( you, your )   Yes,________( I, my ) am.