Question

请问应该先哪个？麻烦讲解一下，万分感谢！！！ She was heard ___ in the next room. A: sing B:to sing

请问应该先哪个？麻烦讲解一下，万分感谢！！！
She was heard ___ in the next room. A: sing B:to sing C: sang D: sung
请问有哪些动词在主动语态中要省 to ,在被动语态中要加to的，万分感谢！！！

Answer 1

She was heard ___ in the next room. A: sing B:to sing C: sang D: sung
请问有哪些动词在主动语态中要省 to ,在被动语态中要加to的，万分感谢！！！
答案为B，因为 sb hear sb do sth 某人听到某人干某事，用被动语态是还原to
即be heard to do sth
希望对您有帮助

Answer 2

B
主动语态中,hear只能接不带to的不定式或动名词作宾语：
hear sb do sth:I heard her sing that song.我听见过她唱那首歌.
hear sb doing sth ：I heard her singing that song.我听见她在唱那首歌.

在被动语态中,又要将不定式前加上to,就以上面两句为例：
She was heard to sing that song.她被人听到过唱那首歌.
She was heard singing that song.她正在唱那首歌时被人听到了.