问题
选择题
—How do you know that she likes singing?
—I often hear her ________ in the morning.[ ]
A. to sing
B. sang
C. sing
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—How do you know that she likes singing?
—I often hear her ________ in the morning.[ ]
A. to sing
B. sang
C. sing
答案：C
