Active to passive

We heard the sound of music

=>

The police arrested ten men

=>

2 câu trả lời

Đáp án:

We heard the sound of music

`=>` The sound of music was heard. 

The police arrested ten men

`=>` Ten men were arrested by the police. 

Giải thích các bước giải:

Cấu trúc bị động thì QKĐ:

(+) S+was/were+ P. P + by O...
(-) S+was/were + not + P.P + by O...
(?) (...) Was/were + S + P.P + by O...?

We heard the sound of music

`=>` The sound of music was heard (by us).

Dạng bị động của thì quá khứ đơn:

$S+was/were+VpII+(by+O)+...$

"The sound of music" chủ ngữ số ít `->` was

The police arrested ten men

`=>` Ten men were arrested by the police.

Dạng bị động của thì quá khứ đơn:

$S+was/were+VpII+(by+O)+...$

"Ten men" chủ ngữ số nhiều `->` were