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1.How old are you?

2.Who teaches you English this semester?

3.How many days will you stay here?/ How long will you stay here?

4.Where did she buy this card?

5.How many students are there in the classroom?

6.Why do the boys love playing football?

7.What subject are they studying now?

8.Who did the father take to the zoo last week?

9.Who did you see last year?

10.How long have they studied English?

11.What time do you often have breakfast?

$\text{⇒ Answer:}$

$\text{1. How old are you ?}$

$\text{2. Who teaches you English this semester ?}$

$\text{3. How long will you stay here ?}$

$\text{4. Where did she buy this card?(bought là dạng quá khứ của buy: đưa)}$

$\text{5. How many students are there in the classroom ?}$

$\text{6. Why do the boys love playing football ?}$

$\text{7. What subject are they studying now ?}$

$\text{8. Who did the father take to the zoo last week ? (took là dạng}$

$\text{quá khứ của take, nghĩa là "Đưa"}$

$\text{9. Who did you see last year ? (saw là dạng quá khứ của see.)}$

$\text{10. How long have they studied English ?}$

$\text{11. What time do you often have breakfast ?}$