Giúp gấp ạ . Em hết điểm rồi làm giúp em nhé

20. Did____buy/ bought
21. sat
22. is _____doing
23. sent
24. didn't watch
25. Did____go/ went/ didn't ẹnoy
--------------------------------------------------------------------------------------
Form ( Công thức QKĐ)
----V thường----
(+) S + V2/ed+...
(-) S + didn't + V
( ?) [Wh/h]+ did+ S+ V?
----Tobe ( was/ were)-----
(+) S + be + O
(-) S + be not + O
(?) [Wh/h] Be + S + O?

Bảng Sít/ Sn
We/ You/ They/ Ns-es + were
I / He/ She/ It / N + was
DHNB: yesterday
            last....
            this morning
            ...ago
            in + th.gian trong qk

Form ( công thức HTTD) - tobe : is/am/are
(+) S + tobe + V-ing
(-) S + tobe not + V-ing
(?) [Wh/h] + be + S + V-ing?
Bảng chủ ngữ ít- nhiều
I + am
We/ You/ They/ Ns-es + are
He/ She/ It/ N + is
DHNB: now
             right now
             at present
             at the moment
             các đ.từ mệnh lệnh k.thúc =!

#Ribee

Chúc bạn học tốt~

$20. $ Did they buy/bought

$→$ ago $→$ Thì QKĐ

$21. $ is sitting

$→$ now $→$ Thì HTTD

$22. $ is Lan doing

$→$ at the moment $→$ Thì HTTD

$23. $ sent

$→$ last Sunday $→$ Thì QKĐ

$24. $ didn't watch

$→$ last night $→$ Thì QKĐ

$25. $ Did you go/went/didn't enjoy

$→$ last night $→$ Thì QKĐ

$*$ Thì HTTD: 

$(+)$ S + am/is/are + Ving

$(-)$ S + am/is/are + not + Ving

$(?)$ Am/Is/Are + S + Ving?

$*$ Thì QKĐ: 

$(+)$ S + Ved/V2

$(-)$ S + didn't + V-bare

$(?)$ Did + S + V-bare?