`37.` I was made to wait for the door for twenty minutes.

`->` bị động thì QKĐ:
S + was/were + P2 + (by O)

`38.` He wishes he could see Audrey on her trip to London.

`->` Mong ước ở hiện tại:
S + wish(es) + (that) + S + Ved/V2

`39.` I'm not used to travelling by air.

`->` be used to doing sth: quen với việc gì

`40.` It took me two days to travel to that town.

`->` S + spend + time + V-ing

`=` It + takes/took sb + time + to V

`37`. I was made to wait for the door for twenty minutes.

`@` Bị động made:

`-` S + tobe + made + to do sth

`@` Dạng bị động quá khứ đơn:

`-` S + was/were + V3/ed + by(O)

`38`. He wishes he could see Audrey on her trip to London.

`@` Câu ước trái với hiện tại:

`-` S + wish(es) + S + V2/ed

`-` Lùi `1` thì trong câu ước "can't" `->` could

`39`. I'm not used to travelling by air.

`-` S + find + it +adj + to do sth

`=` S + tobe + used to + V-ing: ai đó đã quen làm gì..

`40`. It took me two days to travel to that town.

`@` Cấu trúc:

`-` It + takes/took + sb + time + toV-bare: Ai đó mất bao nhiêu thời gian để làm gì..

`=` S + spend(s)/spent + time + V-ing: ai đó dành thời gian làm gì..