题目内容：

As a volunteer teacher, I traveled a long way to a small village school in Longzhou, Guangxi. On my way there, I thought about the village, the school, and the children there. However, my_heart_sank when I arrived there. It wasn't what I expected. It didn't look like a school at all! The school had only three rooms, one for Grades 1, 2 and 3, and the other for Grades 4, 5 and 6. There was a third one for me.

The children welcomed me warmly on my first day. They asked me a lot of questions, and I told them stories about myself and my life in Shanghai. The next day, I gave them a test to find out their level. To my surprise, though the test was very easy, over half of the students failed it, yet they all wanted to learn new things. I knew they needed me.

I was busy preparing lessons, reading test papers every night. I enjoyed teaching these lovely and hard－working children, and I could see that they were making progress with my help. I have also learned a lot from them. I understand their lives better, and we are now good friends.

I have worked in Longzhou for a year now. I'm happy, and the experience has been very useful for me. I love the small village and the children. In fact, I would like to continue working here.

1.The writer is a volunteer teacher who comes from ________．

A. Guangxi B. Xiamen C. Shanghai D. Beijing

2.The writer found there were only ________ rooms in that school.

A. two B. three C. six D. four

3.In the passage, “my heart sank” means that the writer ________．

A. felt upset B. was happy C. got angry D. was excited

4.The writer found the students' level was ________ what she expected after the first test.

A. just as B. higher than C. lower than D. the same as

5.Which of the following statements is NOT true?

A. Both the volunteer teacher and the students are working so hard.

B. The volunteer teacher doesn't like to work there any longer.

C. The students became better and better with the help of the volunteer teacher.

D. The volunteer teacher became friends with the students.