He is often heard _____ in the next room.
He is often heard _____ in the next room.
A. singing B. sang C. to singing D. to sing
为什么答案是A而不时C呢?
hear sb do sth变成被动语态后,do sth前面不是要加上to 吗?
A. singing B. sang C. to singing D. to sing
为什么答案是A而不时C呢?
hear sb do sth变成被动语态后,do sth前面不是要加上to 吗?
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—Have you heard _____ Liu Xiang?
1年前1个回答
你能帮帮他们吗