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Can I say,

(1) They lived in / at a bungalow.

(2) She took part in the long jump event / in the long jump.

(3) She ran to / towards her mother.

(4) Peter's parents took him and his sister to the funfair.

(5) He drank milk for breakfast.

(6) The crowd is / are waiting for their favourite singer to go on stage.

(7) The pupils are talking to / with their teacher.

(8) They rowed a boat to across the river.

(9) Lily received an email from her computer.

(10) They carried chairs into / to / in the classroom.

(11) The squirrel has a long bushy tail.
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Yes, that's possible too, Vctory.
Comments  
(1) They lived in a bungalow.

(2) She took part in the long jump event / in the long jump. -- OK

(3) She ran to / towards her mother. -- OK. "to" has a stronger sense that she actually reached her mother.

(4) Peter's parents took him and his sister to the funfair. -- OK

(5) He drank milk for breakfast. -- OK

(6) The crowd are waiting for their favourite singer to go on stage. -- "The crowd is" is often OK, but here it jars with "their" (and "The crowd is waiting for its favourite singer" doesn't seem a good fix to me). There may be AmE/BrE differences in usage here (I'm BrE).

(7) The pupils are talking to / with their teacher. -- OK

(8) They rowed a boat to across the river.

(9) Lily received an email on her computer. -- "from" is possible but not very likely. It would mean she was away from her own computer and using some other device, and received an email that her computer had sent.

(10) They carried chairs into / to the classroom. -- "into" emphasises that they took them inside the room; "to" focuses on the movement from one location to another (e.g. from a store to the classroom). "in" is possible but unlikely. It would mean something like they were parading round inside the classroom carrying chairs.

(11) The squirrel has a long bushy tail. -- OK
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Hi!
May I change into the sentence below?

They rowed a boat to cross the river.
Please help me with it!

Many thanks in advance
 Mister Micawber's reply was promoted to an answer.