问题
选择题
The black clouds have _____ the sun and it is going to rain. [ ]
A. blocked in
B. blocked off
C. blocked out
D. blocked up
答案
答案：C
搜题请搜索小程序“爱下问搜题”
The black clouds have _____ the sun and it is going to rain. [ ]
A. blocked in
B. blocked off
C. blocked out
D. blocked up
答案：C
