Bài 1:

1.Are
2.Was

3.Was

4.Were

5.Was

6.Am

7.Is

8.Is

Bài 2:

1 open .....opened...................

2 love ..........loved................

3 plan ..............planned...............

4 empty .............emptied..................

5 regret ...............regretted..................

6 quarrel ...............quarrelled...............

7 drop ...........dropped....................

8 die .........died.....................

9 cry .............cried...............

10 fry ...........fried..................

11 arrive ............arrived............

12 arrive .............arrived.................

13 play .................played....................

14 stay ...............stayed.................

15 close ...............closed...................

16 tidy ...................tidied ..............

Đáp án: + Giải thích các bước giải:

`2)` was

`3)` was

`4)` were

`5)` was 

`6)` was

`7)` is 

`8)` is 

Bài `2)`

`2)` loved

`3)` planned

`4)` emptied

`5)` regreted

`6)` quarreled

`7)` dropped

`8)` đie

`9)` cried

`10)` tried

`11)` arrived

`12)` played

`13)` stayed

`14)` traveled

`15)` closed

`16)` tidied

`@` QKĐ: Nói về hành động, sự việc đã xảy ra và kết thúc, không liên quan đến hiện tại 

`+` Chuỗi hành động

`to` Kết quả

`-` Cấu trúc tobe

`( + )` S + was/were + O

`( - )` S + was/were not + O

`( ? )` Was/were + S + O

I, He, she, it hoặc N ( số ít) `to` was ( not)

You, we, they hoặc N( số nhiều) `to` were ( not)

`-` V( thường)

`( + )` S + Ved/ Cột `2` + O

`( - )` S + did not + V + O

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

`@` DHNB:

`-` Yesterday

`-` Last

`-` Ago

`#Ph`