Speaker A:Ten dollars for this brand?Speaker B:（）.I got it in a second-hand store.

单项选择题Speaker A:Peter,I'm awfully sorry.I won't be able to come this Friday.Speaker B:What's the matter?（）.

A.I'm really sorry for that
B.Nothing wrong.I hope
C.It's all right with me
D.You can come some other time

单项选择题It is,of course,very exciting to have such an iportant（）of my work,but real pleasire was in the work itself.

A.ackowledgement
B.recogniton
C.realization
D.assessment