问题
选择题
_______ they worked very hard, _______ they didn't finish their work. [ ]
A. Although; but
B. Though; but
C. /; and
D. Although; /
答案
答案：D
搜题请搜索小程序“爱下问搜题”
_______ they worked very hard, _______ they didn't finish their work. [ ]
A. Although; but
B. Though; but
C. /; and
D. Although; /
答案：D
