将下列对话补充完整.（每空一词）

A: Hi, Mike. Why are you walking    小题1:   this ? What`s wrong  小题2:  you.

B: I fell down last night.

A: I `m sorry to hear that!  小题3:   you hurt yourself.

B: Yes, a little.

A: But why did you fall down ?

B: We played a game last night, and I   小题4:   the chair.

A: Too bad. Don`t worried. Let me help you.

B: It`s very kind   小题5:   you.

METRO1000设备IU1槽位不能插下面哪种板（）。

A.OI2D；

B.OI2S；

C.OI4；

D.SP1D。