问题
选择题
Friends are angels who lift us to our feet _____ our wings have trouble remembering how to fly. [ ]
A. unless
B. because
C. though
D. when
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Friends are angels who lift us to our feet _____ our wings have trouble remembering how to fly. [ ]
A. unless
B. because
C. though
D. when
答案：D