Question

【题目】—Where is Tom?

—I’m not sure. Maybe he is in the music room. He was often heard songs in it.

A. singB. to singC. singingD. sang

Answer 1

【答案】B

【解析】

句意：--Tom在哪里？--我不确定，可能他在音乐教室。我经常听到他在那里唱歌。此题考察到hear的用法。hear sb do sth听到某人做了某事，但是当它用于被动语态时，需要还原不定式中的to,即 sb be heard to do sth某人被听到做了某事。此句表示“他经常被听到”，故是被动语态。所以是to sing, 故选B。