阅读下面的短文，并做每篇后面的题目。从四个选项中选出能回答所提问题或完成所给句子的最佳答案。                                
One day, Allan and his friend Henry went swimming in a river. It was very hot. How happy they were in the river! After they got out of the water, they played games in the sun for a while.
　　On their way back, Henry saw some flowers. He liked flowers very much and ran into the green field to look at them. Now Allan was walking by himself.
　　Then he heard Henry calling out, "A snake（蛇）! Help!..."
　　"What's wrong with you?" asked Allan.
　　"A snake bit（咬）me in the leg. Come here!"
　　Allan ran over and saw a small red wound（伤口）on Henry' s leg.
　　"The snake was in the grass. I didn't see it."
　　"Sit down quickly"! Allan told Henry.
　　Allan put his mouth at the little red wound and began to suck（吸）at it. In this way he saved （挽救）Henry's life. "Oh, Allan, it's very kind of you to help me."
　　"That's all right. We are friends and we must always help each other."
It was________ when-Allan and Henry went out.

A．hot

B．cold

C．raining

D．wet

After swimming, they played in the sun________.

A．the whole morning	B．for 2 hours
C．long	D．for a while

On their way home,________ got something wrong with his

A．Allan; leg	B．Allan; head
C．Henry; leg	D．Henry; head

Henry and Allan are________.

A．workers	B．good friends
C．brothers	D．farmers

Which of the following（下面的）is true?

A．Henry went to look at the flowers with Allan.

B．Allan saved Henry' s life.

C．Allan saw the snake.

D．They ran to the hospital at once.