X. Make questions for the underlined part in each sentence.

46. The first Olympic Games took place in Greece in 776 BC.

Where and when was the first Olympic Games take place?

47. Pelé began his career at the age of 15.

When did Pelé begin his career?

48. I really like swimming because it helps me keep fit.

Why do you really like swimming?

49. The Olympics Games are held once every four years. 

How often are The Olympics Games held?

50. The children are playing tug of war.

What are the children doing?

X. Make questions for the underlined part in each sentence.

46. The first Olympic Games took place in Greece in 776 BC.

⇒Where were the first Olympic Games took place?

47. Pelé began his career at the age of 15.

⇒When did Pelé begin his career?

(Do câu trên là thì QKĐ nên cậu hỏi dưới khi chuyển cx phải thì QKĐ->Dùng trợ động từ 'did' và began->begin)

48. I really like swimming because it helps me keep fit.

⇒Why do you like swimming? 

(Khi thấy 'because' thì câu hỏi sẽ là 'why' và câu trả lời là 'T' thì câu hỏi là 'you' )

49. The Olympics Games are held once every four years.

⇒How often are the Olympics Games held? 

('Once' là chỉ tần suất thời gian nên dùng 'how often')

50. The children are playing tug of war.

⇒What are the children doing?