问题
选择题
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
答案
答案：D
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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
答案：D