`1`. These are the most difficult exercises in the whole book.

`-` Đại từ chỉ định + tobe + N

`-` So sánh hơn nhất: S + be + the + adj-est/most adj + (N)

`-` the + N(xác định)

`2`. The film which we saw yesterday was quite interesting.

`-` which thay thế cho danh từ chỉ vật, which + S + V

`-` QKĐ: S + V2/ed

`-` QKĐ: S + was/were

`-` quite + adj: khá

1. These are the most difficult exercises in the whole book.

These are + N số nhiều

S + be+  the most + ADJ + N : ss nhất 

2. The film which we saw yesterday was quite interesting.

N (vật) + which + V / S + V 

DHNB: yesterday (QKD)

S + V2/ed 

be + ADJ

`color{orange}{~LeAiFuRuiHuiBao~}`