The students can focus their attention on studies in a quiet academic atmosphere,____ good seats
问题描述：
The students can focus their attention on studies in a quiet academic atmosphere,____ good seats
(接上) in a library.
a.having reserved
b.reserving
c.to reserve
d.reserved
答
A having reserved
学生保留好座位在图书馆时可以把注意力集中在一个安静的学术氛围研究中,