1. Amechanic repairedn my motorbike last week.

I had...

He is not strong enough to do that job.

2.

He is too..

They know more about it than we do.

We don't..

3.

4. You must do your homework before class.

Your homework...

5. He has just sent me a greeting card.

A greeting card..

`1` I had my motorbike repaired by a mechanic last week .

`-` have + O(bị động) + V3/Vpp + by + O(người) .

`2` He is too strong to do that job .

`-` be + too adj + to do sth : quá như thế nào để làm gì .

`3` We don't know as much about it as they do .

`-` SS ngang bằng : S1 + V + as + adv/adj/N + as + S2 .

`4` Your homework must be done before class .

`-` Bị động với ''must'' : S(bị động) + must + be + V3/Vpp + O .

`5` A greeting card has just been sent to me .

`-` Bị động hiện tại hoàn thành : S(bị động) + have/has + been + V3/Vpp + O .

`1`. I had a mechanic repair my motorbike last week.

`->` S + have + O1 + V-inf + O2

`2`. He is too weak to do that job.

`->` S + be + too + adj + to-V: quá ... để ...

`3`. We don't know as much about it as them.

`->` So sánh bằng phủ định: S1 + not + V + as + adv + as + S2

`4`. Your homework must be done before class.

`->` Bị động với must: S + must be + V-pII + (by O)

`5`. A greeting card has just been sent to me by him.

`->` Bị động HTHT: S + have/has + been + V-pII + (by O)