问题
选择题
We stopped ______, but heard nothing. [ ]
A. to listen
B. to listen to
C. listening
D. to listening to
答案
答案：A
搜题请搜索小程序“爱下问搜题”
We stopped ______, but heard nothing. [ ]
A. to listen
B. to listen to
C. listening
D. to listening to
答案：A