Question

【题目】The girl is often heard ________ in the music room. Her voice sounds beautiful.

A. practice singingB. to practice singing

C. practiced singingD. to practice sing

Answer 1

【答案】B

【解析】

句意：人们经常听到这个女孩在音乐室里练习唱歌。她的声音听起来很美。考查动词形式辨析。hear sb. do sth.听见某人做某事，固定短语；在被动语态结构中，省略的不定式符号to需还原，可排除AC两项。本句是被动语态，需用不定式做主语补足语；根据句意结构，可知选B。