thì hiện tại đơn với động từ thường. 

(+) S+ verb + Object...
(-) S+ don't/doesn't + Object...

(?) Do/Does + S + Verb + Object...?

thì quá khứ đơn với động từ tobe

(+) S+ was/ were + ...

(-) S+ was/ were + not + ...

(?) Was/ Were +S..?

1. It was warm, so I took off my coat. (take)

=> took

2. The film wasn’t very goor. I didn’t enjoy it very much. (enjoy)

=> didn't enjoy

3. I knew Sarah was very busy, so I ….. her (disturb)

=> didn't disturb

4. I was very tired, so I ….. the party early. (leave)

=> left

5.The bed was very uncomfortable. I ….. very well (sleep)

=>  sleep

6. The window was open and a bird ….. into the room (fly)

=> flew

7. The hotel wasn’t very expensive. It ….. very much (cost)

=> cost

8. I was in a hurry, so I ….. time to phone you (have).

=> have

9.It was hard carrying the bags. They ….. very heavy. (be)

=> were

Câu 1 : took

Câu 2 :  didn't enioy 

Câu 3 : didn't disturb

Câu 4 : leave

Câu 5 : sleep

Câu 6 : flew

Câu 7 : cost

Câu 8 : have

Câu 9 : were

giải thik :

 QKĐ với động từ tobe :

(+) S+ was / were +

(-) S+ was / were + not + 

(?) Was / Were +S ...,.. ?

HTĐ với động từ thường :

(+) S+ verb + Object ....,.... 
(-)  S+ don't / doesn't + Object  ...,....

(?)  Do / Does + S + Verb + Object ...,... ?

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