when did he learn French

=> từ khi nào anh ta học tiếng Pháp (sử dụng thì QKĐ)

i study English so as to improve my knowledge

=> so as to = so that + S = như vậy (đây là 2 cấu trúc tương đương)

a bunch of flowers have been given to her by them

=> cấu trúc câu bị động của thì HTHT: S1+ tobe+ been+ V(phân từ 2) + O

Is this the first time you have gone to school late?

=> liệu đây có phải lần đầu tiên bạn đến trường trễ ko?? ( 2 nghĩa tương đương)

he was delighted that he received his aunt's letter

=> S+ tobe+ delighted+ to +Vinf = S+tobe+delighted+ that+ clause= rất vui vì điều gì (2 cấu trúc ngữ pháp tương đương)

chris asked mary if she realized what the time was

=> cấu trúc câu bị động: ta lùi một thì từ HTĐ → QKĐ rồi chuyển "do" → "if/whether" và chuyển "the time" lên trước tobe

lan didn't remember her birthday and so did I

=> didn't remember = forrgot = quên (2 từ đồng nghĩa)

cho xin 5* và ctrlhn nha

`2.`When did you learn French ?

`→`How long is it since + S + V2/ed ?

`=`When + did + S + V ?

`3.`I study English so as to improve her knowledge.

`→`S + V + in order/so as + (not) + to + V…

`4.`A bunch of flowers has been given to her.

`→`Bị động với HTHT : S + have/has + been Vpp + (by O)

`5.`Is this the first time you have gone to school late?

`→`Have/Has + S + Vpp + before ?

`=`Is this the first time + S + have/has + Vpp ?

`6.`He was delighted that his aunt sent him a letter.

`→`S + be + so + adj + that + S ​+ V

`7.`Chris asked Mary if/whether she realized what time it was.

`→`Câu hỏi Yes/No : S + asked +(O)/wanted to know/ wondered + if/whether + S + V(lùi thì)

`8.`Lan didn't remember her birthday and neither did I.

`→`forgot = didn't remember : quên

`→`Cấu trúc : S + didn't + V + neither + did + S