问题
选择题
Listen! Can you hear the boy in the next room? [ ]
A. to sing
B. sings
C. sang
D. singing
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Listen! Can you hear the boy in the next room? [ ]
A. to sing
B. sings
C. sang
D. singing
答案：D