-Could I use your dictionary?-Sorry,you_____.I'm using it.A.couldn't B.mustn't C.can't D.shouldn't
问题描述:
-Could I use your dictionary?-Sorry,you_____.I'm using it.
A.couldn't B.mustn't C.can't D.shouldn't
答
c
问句中could表示客气语气
答
c
答
C