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27.  $\Longrightarrow$   The students practice after school on Thursday...

Dẫn chứng :

$\Longrightarrow$   Ở dòng thứ 1, từ The students practice....on Thursday...

28.  $\Longrightarrow$   They're joining in the National Schools Competition.

Dẫn chứng :

$\Longrightarrow$   Ở dòng thứ 2, từ They're joining....National Schools Competition.

29.  $\Longrightarrow$   In water polo, the players don't you their feet - they catch and throw the ball with one hand.

Dẫn chứng :

$\Longrightarrow$   Ở dòng thứ 3, từ In water polo, the players don't you their feet....with one hand.

30.  $\Longrightarrow$   No, it isn't

Dẫn chứng :

$\Longrightarrow$   Ở dòng thứ 4, từ They have to swim up and down....isn't the sport for them !

$#BearChan$