4. You should try your homework on time.

   A. finish      B. finishing

   C. to finish   D. finished

3. 1 think you should take some .

   A. apple   B. carrot

   C. milks   D. medicine

2.I an English book when the bell rang.

   A. read        B. will read

   C. am reading   D. was reading

1. he was taking photos in the museum,the manager stopped him.

   A. Until   B. While   C. Before   D. After

5. —I called you at seven last night,but nobody answered.

(根据情景补全对话)

—Sorry.I   a film in the cinema.

4. He said, “I'm dancing."(改成宾语从句) 

He said that   .

3. 1 was walking in front of the shop when the UFO landed.(改为同义句) 

The UFO landed I was walking in front of the shop.

2. She and I were listening to music when the rainstorm came.(改为否定句) 

She and I to music when the rainstorm came.

5. 他在做作业时，我在读书。

he  homework,I was reading

4. 天下雨时，我正在外面走。

I  outside when it rained.