37. Lan often played tennis when she was young.  Lan used ........................................................................................................................................ 38. You are too young to watch horror films.  You are............................................................................................................................................ 39. We began to play the piano two years ago.  We have ____________________________________________________ 40. No one in this class is taller than Nam.  Nam is ____________________________________________________

37. Lan used to play tennis when she was young. 

Cấu trúc: Used to+V nguyên mẫu: đã từng làm gì nhưng giờ không còn làm nữa.

38. You are not old enough to watch horror films.

Cấu trúc: be (not)+adj+enough+to V: đủ để làm gì 

39.  We have played the piano for two years

Cấu trúc: 

S + started / began/commenced + Ving (to V1) + time <=> S+have/has+V3/ed+time 

40. Nam is the tallest student in this class.

Cấu trúc so sánh nhất với tính từ ngắn: the+adj-est.

#kiwi🥝

`37`. Lan used to play tennis when she was young.

- used to + Vinf: đã từng làm việc gì trong quá khứ

`38`. You are not old enough to watch horror films.

- Cấu trúc enough: S + be + (not) + adj + enough + (for SO) + to V

`39`. We have played the piano for two years.

- S + began + to V/Ving + thời gian + ago

= S + have/has + Vpp + for + khoảng thời gian

`40`. Nam is the tallest (person/student) in this class.

- So sánh nhất với tính từ ngắn: S + be + the + adj + est