听下面一段较长对话，回答以下小题。
【小题1】Why did some kids feel unhappy at first?

A．They didn’t get used to the new environment.

B．They weren’t willing to attend the trip.

C．They thought the trip would be boring.

【小题2】How did the children feel about the guide?

A．Bored.

B．Satisfied.

C．Disappointed.

【小题3】What was the children’s favorite activity?

A．Sailing.

B．Horse-riding.

C．Barbecuing.

【小题4】What is said about the children?

A．They had known each other before.

B．They wanted to get together again.

C．They were all homesick at first.