( )1.—______
—Yes, there is.
( )2.—Where is the mountain?
—______
( )3.—______
—There are many plants and animals.
( )4.—______
—No, there aren't.
( )5.—How many students are there in the classroom?
—______

1. C
2. A
3. E
4. D
5. B

1. 根据答语“Yes, there is.”可知问句应为以Is there开头的一般疑问句，选项C“Is there a river near your school?”符合。
2. 问句“Where is the mountain?”询问山的位置，答语应是表示地点的句子，选项A“It's behind the park.”符合。
3. 根据答语“There are many plants and animals.”可知问句是询问某地有什么，选项E“What's in the nature park?”符合。
4. 根据答语“No, there aren't.”可知问句应为以Are there开头的一般疑问句，选项D“Are there any pears in your bag?”符合。
5. 问句“How many students are there in the classroom?”询问数量，答语应是表示数量的句子，选项B“There are twenty-five.”符合。

1. There is a little boy on the street.(改为一般疑问句)
2. There is a horse in the photo.(改为复数句)
3. Are there any pets in your grandma's house?(作肯定回答)
4. There are some pigs and cows on the farm.(改为否定句)
5. Are there any tall buildings in the park?(作否定回答)

1. Is there a little boy on the street?
2. There are some horses in the photo.
3. Yes, there are.
4. There aren't any pigs or cows on the farm.
5. No, there aren't.