阅读理解。

    It is the last lesson before the vacation (假日). The students are very happy. Their English teacher is very

happy, too. Their teacher plays some nice games with them. He sings some nice songs with them, and then

he goes to the blackboard and writes "SMILES" (微笑) on it.

    "This is one of the longest (最长的) words in English," He says to the class.

    All the students surprised, and then one girl stands up and says, "Why is it one of the longest words in

English?"

    The teacher says nothing for a minute. Then he smiles and says, "Because there is a mile (英里) between

the first letter and the last."

1. Why are the students happy? [ ]

A．Because it is holidays soon.

B．Because the last lesson is interesting.

C．Because their teacher is happy.

2. What does their teacher do? [ ]

A．He plays ball games with them.

B．He plays some nice games with them.

C．He drinks with them.

3. What does he write on the blackboard? [ ]

A．Longest

B．Song

C．SMILES

4. Do the students know why "SMILES" is one of the longest words in English? [ ]

A．No, they don't.

B．Yes, they do.

C．Yes, they can.

5. How is the teacher? [ ]

A．Polite.

B．Sad.

C．Happy.