1. there a lake in the park?
2. there any ducks on the lake?
3. There many buildings in the city.
4. Are there birds in the park?

1.Is 2.Are 3.are 4.any

1. 句中"a lake"为单数，be动词用is，句首首字母大写。
2. 句中"any ducks"为复数，be动词用are，句首首字母大写。
3. 句中"many buildings"为复数，be动词用are。
4. 该句为疑问句，询问“一些”用any。

1. —Is there a river in the village?
—Yes, .
2. —Are there any trees on the hill?
—Yes, .
3. —Is there a lake in front of the mountain?
—No, .
4. —Are there any buildings in the forest?
—No, .

1. there is
2. there are
3. there isn't
4. there aren't

1. 问句是“Is there a river in the village?”（村子里有一条河吗？），从图片可看到村子旁边有河，肯定回答是“Yes, there is.”。
2. 问句是“Are there any trees on the hill?”（山上有一些树吗？），图片显示山上有树，肯定回答是“Yes, there are.”。
3. 问句是“Is there a lake in front of the mountain?”（山前面有一个湖吗？），图片中山前面没有湖，否定回答是“No, there isn't.”。
4. 问句是“Are there any buildings in the forest?”（森林里有一些建筑物吗？），图片中森林里没有建筑物，否定回答是“No, there aren't.”。