问题补充:
The girl is often heard in the next room.
A. sing
B. to sing
C. singing
D. sings
答案:
A. sing
(答案→)B. to sing
C. singing
D. sings
解析:hear sb do sth表示听到某人经常做某事,变为被动语态时要把不定式符合to加上,变为be heard to do sth.
时间:2022-01-14 07:26:22
The girl is often heard in the next room.
A. sing
B. to sing
C. singing
D. sings
A. sing
(答案→)B. to sing
C. singing
D. sings
解析:hear sb do sth表示听到某人经常做某事,变为被动语态时要把不定式符合to加上,变为be heard to do sth.