问题
More and more high-rise buildings have been built inbig cities ________ space.
A:the teacherhimself is; all his students are
B:the teacherhimself is; are all his students
C:is theteacher himself ; are all his students
D:in memory of
B:the teacherhimself is; are all his students
C:is theteacher himself ; are all his students
D:in memory of
正确答案是：
