`39`.The suggested that the entrance examination should be taken carefully

`\rightarrow` BĐ `-` Should : S + should be + V3 / PII ( by O )

`40`.Mai was happy that she received a lot of birthday presents

`\rightarrow` S + is / am / are + adj + that + Clause : Như thế nào vì cái gì

`\text{# Kirigiri}`

39. They suggested that the entrance examination should be taken carefully.
(Cấu trúc: S + suggest (s,ed) +V-ing...
->S+ suggest (s,ed) (that) + S1 +(should) +V... : Ai đó khuyên người nào đó nên làm gì)

40. Mai was happy to receive a lot of birthday presents./Mai was happy that she received a lot of birthday presents.
(sau ''was''- động từ liên kết (linking verb) là tính từ)