Thì quá khứ đơn 1.He (fly) ……………the kite in the park last week 2.I (not write) …………….to him this morning 3.What ……………..your sister (play) ……………..in 2013? 4.They (drop)……………….. books on the floor yesterday 5.We (not arrive) ………………here two days ago 6.What……………… your brother (make)…………….. you yesterday? 7.I (carry)………………… a big bag to school last Tuesday 8.My mother (catch)……………….. a bus to work yesterday 9.They (not stay)………………. at home yesterday 10.I (meet) …………………..her last week

Thì QKĐ :

`-` CKĐ : `\text{S + Ved / V2}`

`-` CPĐ : `\text{S + didn't + V}`

`-` CNV : `\text{Did + S + V ?}`

`=>` `DHNB` : ago , yesterday , last ...

`1`.flew

`2`.didn't write

`3`.did ... play ?

`4`.dropped

`5`.didn't arrive

`6`.did ... make ?

`7`.carried

`8`.catched

`9`.didn't stay

`10`.met

`\text{@ TheFox}`

`1` flew

`2` didn't write

`3` did / play

`4` dropped

`5` didn't arrive

`6` did / make

`7` carried

`8` catched

`9` didn't stay

`10` met

Giải thích

Cấu trúc thì QKĐ

`(+)` S + V2/ed + ...

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

`(  ?  )` Did + S + V-inf ?