问题
选择题
Our music teacher is always heard _______ in the music room.
A．sing
B．sang
C．singing
D．to sing
答案
答案：D
hear sb do sth表示听到某人经常做某事，变为被动语态时结构变为be heard to do sth.
搜题请搜索小程序“爱下问搜题”
Our music teacher is always heard _______ in the music room.
A．sing
B．sang
C．singing
D．to sing
答案：D
hear sb do sth表示听到某人经常做某事，变为被动语态时结构变为be heard to do sth.
from