`1.` You have seen Jennifer since she arrived in Viet Nam, haven't you?

`-` Câu hỏi đuôi HTHT:

S +  has/have + V3/ed + O, has/have + not + S?
`2.` Hoa suggested that Ba (should) invite Lan to the farewell party

`-` S + suggest + that + S + (should) + V_inf + O

`->` gợi ý, đề nghị ai làm gì

`3.` She looked carefully at the pink dress before going to the wedding ceremony

`-` have a careful look at sth `=` look carefully at sth 

`4.` Yesterday, it wasn't as hot as today

`-` So sánh ngang bằng:
S + tobe + as + adj + as + S

`5.` The woman looked very sad whose son failed in the exam

`-` whose `-` thay thế cho TTSH

`6.` The men stopped walking because the rain was heavy

`-` a clause + because + a clause `-` nguyên nhân `-` kết quả

`7.` Mrs.Mi wishes she had gone abroad before

`-` Câu ước quá khứ : S + wish(es) + S +  V3/ed + O

`1`. You have seen Jennifer since she arrived in Vietnam, haven't you?

`-` Câu hỏi đuôi:

`+` Have (khẳng định) `->` chuyển về dạng phủ định (haven't you ?)

`-` since `->` HTHT: S + has/have + VpII

`2`. Hoa suggested that Ba should invite Lan to the farewell party.

`-` S + suggested + that + S + (should) + V-infinitive: ai đề nghị ai (nên) làm gì..

`3`. She looked at the pink dress carefully before going to the wedding ceremony.

`@` Phrasal Verbs:

`-` Have a careful look at sth `=` Look sth carefully: nhìn cái gì đó một cách cẩn thận

`4`. Yesterday , it wasn't as hot as today.

`-` So sánh không bằng: S1 + tobe + not + as + adj + as + S2

`-` Yesterday `->` QKĐ: S + was/were + adj/N - dạng tobe

`5`. The woman whose son failed in the exam looked very sad.

`-` Whose thay thế cho sự sở hữu cả người và vật

`-` Look adj: trông ai như nào..

`+` N(người/vật) + whose + Noun

`6`. The men stopped working because the rain was very heavy.

`-` Clause + because + Clause: bởi vì

`->` Chỉ nguyên nhân

`-` Stop + V-ing: ngừng hẳn làm gì..

`7`. Mrs. Mi wishes she had gone abroad before.

`-` Câu ước ở quá khứ:

`+` S + wish(es) + S + had + V3/ed