问题
选择题
People work ______ the daytime and sleep ______ night.
[ ]
A. during; in
B. during; at
C. at; at
D. in; in
答案
答案:B
People work ______ the daytime and sleep ______ night.
[ ]
A. during; in
B. during; at
C. at; at
D. in; in
答案:B