Câu chẻ !!

A. It is until the age of 15 that

B. It is not until the age of 15 that

C. It is the age of 15 that

D. It is until the age of 15 who

A. It is his girlfriend

B. It was his girlfriend's handbag

C. It is his girlfriend's handbag

D. It is his handbag

A. It is for his team

B. It was his team

C. It is his team

D. It was for his team

A. It is people in the Netherlands that    

B. It is in the Netherlands that

C.It is the Netherlands that

D. It was in the Netherlands where

A. It is a more traditional woman that

B. It was a more traditional woman that

C. It was more traditional woman that

D. It was a more traditional woman who

A. It is Mary who made a great contribution to her husband's success.

B. It was Mary who makes a great contribution to her husband's success.

C. It was Mary who make a great contribution for her husband's success.

D. It was Mary who made a great contribution to her husband's success.

A. It is at the age of 20 that he gains impressive achievements.

B. It was at the age of 20 that he gains impressive achievements.

C. It is at the age of 20 that he gained impressive achievements.

D. It was at the age of 20 that he gained impressive achievements.

A. They are their children that most parents are willing to lend their ear to.

B. It is their children that most parents are willing to lend their ear to.

C. They are their children that most parents are willing to lend their ear.

D. It is their children that most parents are willing to lend their ear.

A. It is great enthusiasm that candidates all over the world took part in the competition.        

B. It was great enthusiasm that candidates all over the world took part in the competition.

C. It was with great enthusiasm that candidates all over the world took part in the competition.        

D. It is with great enthusiasm which candidates all over the world take part the competition.

A. It is in Da Lat that he spent his summer vacation.     

B. It was in Da Lat that he spent his summer vacation.

C. It is in Da Lat that he spends his summer vacation.

D. It was in Da Lat where he spends his summer vacation.