问题
选择题
To climb the mountains is ____ hard work but to go down the mountains is ____ great fun. [ ]
A. /; a
B. a; a
C. / ; /
D. /; the
答案
答案：C
搜题请搜索小程序“爱下问搜题”
To climb the mountains is ____ hard work but to go down the mountains is ____ great fun. [ ]
A. /; a
B. a; a
C. / ; /
D. /; the
答案：C
