问题
选择题
—Do you often hear John _____ in his room?
—Yes, listen! Now we can hear him ____ in his room. [ ]
A. sing; to sing
B. singing; sing
C. sing; singing
D. to sing; singing
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Do you often hear John _____ in his room?
—Yes, listen! Now we can hear him ____ in his room. [ ]
A. sing; to sing
B. singing; sing
C. sing; singing
D. to sing; singing
答案：C