Ex 2.

1. spent

2. didn't spend

3. lent

4. built

5. sold

6. Did you tell 

7. borne

8. torn

9. worn

10. sworn

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Thì quá khứ đơn (past simple): 

+) Khẳng định: S + Ved/PII + O

+) Phủ định: S + didn't/did not + V + O

+) Nghi vấn: Did + S + V + O ?

Đáp án :

`1.` She spent all her money last week.

`2.` Mum didn't spend any money on herself.

`3.` I lent my penknife to someone, but I can’t remember who it was now.

`4.` John and his father built the cabin themselves last year.

`5.` My parents sold the stereo at a garage sale.

`6.` Did you tell anyone about this yesterday?

`7.` The unidentified plant  borne gorgeous flowers.

`8.` She torn the letter to pieces and threw it in the bin.

`9.` He often worn glasses for reading.

`10.` Before God He sworn he was innocent. 

Giải thích các bước giải: 

Áp dụng công thức thì quá khứ đơn : 

`+) S + V_(ed)//P_(II) + O.`

`-)  S + didn't + V + O.`

`?)  Did + S + V + O ?`