问题
选择题
Space exploration has been made _____ with the development of modern science and technology. [ ]
A. it possible
B. it was possible
C. that possible
D. possible
答案
答案:D
Space exploration has been made _____ with the development of modern science and technology. [ ]
A. it possible
B. it was possible
C. that possible
D. possible
答案:D