`1.` When did you go to Nha Trang?

`-` When: Khi nào - dùng để hỏi về thời gian

`2.` Where were you yesterday?

`-` Where: ở đâu - dùng để hỏi về địa điểm, nơi chốn

`3.` Where did you go last weekend?

`4.` What did you do? 

`5.` What did she do last night?

`-` What: cái gì, là gì - dùng để hỏi về thông tin, định nghĩa 

`-` QKD:

`(?)` (Wh_question) + did + S + V?

`(?)` (Wh_question) + was/were + S + O/Adj?

`1.` When did you go to Nha Trang?

`-` when : khi nào `->` hỏi thời gian

`-` last year `->` QKĐ

`2.` Where were you yesterday?

`-` where: ở đâu `->` Hỏi nơi chốn

`-` yesterday : hôm qua`->` QKĐ

`3.` Where did you go last weekend?

`-` last+time `->` QKĐ

`4.` What did you do?

`5.` What did she do last night?

`-` last +time `->` QKĐ

`____________________`

Cấu trúc wh_question: Wh_+ tobe/trợ động từ/...+ N/V/adj/...+...?

`*QKĐ`:

`@` Tobe:

`(+)` S+ was/were+N/adj

`(-)` S+ was/were+not+N/adj

`(?)` Was/were+S+N/adj?

`@` Verb:

`(+)` S+ V(past)+O

`(-)`S+ didn't+V-inf+O

`(?)` Did+S+V-inf+O?