“吾及亲仕，三釜而心乐；后仕，三千鍾而不洎亲，吾心悲。”中“及亲”含义是（）。

A.妻子在世上

B.子女在世上

C.父母亲在世上

Seventy percent of the students _____ taken part in the work and seventy percent of the

work _____been finished. [ ]

A. has, has  

B. had , had  

C. has, have    

D. have, has