Rewrite the sentences without changing the meaning

nhanh hộ mij
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II. Rewrite the sentences without changing the meaning.
46.You mustn't swim in that polluted lake, boys
Don't...
47. This TV programme is boring. She still watches it every Sunday.
Although
48. Mark is a bad singer.
Mark
49. Mr. John likes badminton most.
Mr. John's favorite...
50. The girl is so clever!
What
The end!