Nick went to see his grandmother with his father. In the train, Nick often put his head out of the window. His father said, “Nick, keep silent! Don’t put your head out of the window!” But Nick went on putting his head out of the window.

Then his father took Nick’s cap quietly, hid it behind his back and said, “You see, your cap has flown away.” Nick began to cry. He wanted to have his cap back.

His father said, “well, whistle (吹口哨) once! Perhaps your cap will come back.” Nick came up to the window and whistled. Nick’s father quickly put the cap back on Nick’s head.

“Oh! It was wonderful!” Nick laughed. He was pleased. He quickly took his father’s cap and threw it out of the window. “Now, it’s your turn to whistle, Dad!” he said happily.

根据短文内容，回答下列问题。

1．Who did Nick go to see his grandmother with?

2．How did they go to see Nick’s grandmother?

3．What did Nick often do in the train?

4．What did Nick’s father tell him to do to get his cap back?

5．Do you think Nick is a lovely and clever boy?