關於初級的英文文法?

［翻譯］The suspect was arrested with his face covered by a helmet.
臉上罩著頭盔的嫌犯被逮捕了。

［文法］有三種類似易混淆的文法
with sth to do 未然時（還未發生）
with sth doing 已然時（已經發生）且是主動態
with sth done 已然時（已經發生）且是被動態

［例句1］
with so much housework to do，I can't have a rest.
我還有那麼多家務要做，不能休息。
*只要還未發生，就不區分主動或被動態，都用未然時：with sth to do 表示將要做某事

［例句2］
With my husband doing the housework, I can have a rest.
既然我丈夫做了家務，我可以休息了
*with sth/sb doing 已然時（已經發生）且是主動態

［例句3］
With my housework done, I can have a rest.
家務已經被我做完了，我可以休息了
*with sth done 已然時（已經發生）且是被動態

［翻譯］The principal gave a speech to the freshmen,only a few of whom were actually paying attention.
校長對新生發表講話，但他們中只有極少人在聽
［文法］
定語從句的主語出現few, little, some, most, many, much等詞時，一般固定用of whom和of which。
［例句］
In the room are lots of family members , many of whom I don’t know.
房間裡有很多家庭成員，但他們中很多我都不認識

as long as、as soon as並非定要放在句首
［例句］
Mom will be happy as long as you study hard.
只要你努力學習，媽媽就開心
［例句］
You gotta finish your homework as soon as possible
你要儘快完成你的作業