A bus is slower than a plane, _______ it doesn't cost so much. [ ]A. but B. then C. or D. so -七
[ ]
题目简介
A bus is slower than a plane, _______ it doesn't cost so much. [ ]A. but B. then C. or D. so -七
题目详情
[ ]
B. then
C. or
D. so
答案