Lời giải :

Mãi o thấy chủ tus sửa câu hỏi nên mk chỉ đàng suy ra là :

1.My brother is playing tenis

=> What is you brother doing / playing

2. Phong plays computer games in his free time. 

=> What does Phong doing in his free time ?

3. She always skips rope. 

=>When does she skip rope ?

4. these pens are 50.000 dong.

=> How much are these pen ?

5. My village has two pagodas. 

=> How many pagoda your village have ?

6. She is sick because she stayed up late.

=>Why is she sick ? ( bạn ơi đề của câu nay bị ngược à )

Sửa lại :

She  stayed up late because she is sick

=> Why does she stay up late ?

7. Mr Ba davies very carelessly. ( sửa davies thành drives )

=> How does Mr Ba drive ?

8. Ba is good at math and english. 

=> What subject is Ba good at ?

9. Minh goes swimming three times a week. 

=> How often does Minh go swimming ?

10. I will visit my grand parents next Sunday. 

=> Who will you visit next Sunday ?

๖²⁴ʱ๖ۣۜNɦσ❤๖ۣۜXαηɦ༉

(đã sửa )

Vì bạn ko nói chỗ gạch chân nên sẽ xảy ra 2 cách đặt câu hỏi :

1 . What is your brother playing ?

2 . Who is playing tennis ?

@Candyy