问题
选择题
I often hear the girl _____ in the next room. [ ]
A. sang
B. sung
C. sing
D. to sing
答案
答案：C
搜题请搜索小程序“爱下问搜题”
I often hear the girl _____ in the next room. [ ]
A. sang
B. sung
C. sing
D. to sing
答案：C