they are taking a photo of (the mountain)对括号部分提问 （ ）（ ) they taking a photo(

They are taking a photo of (the mountain)对括号部分提问
（ What ）（are ) they taking a photo ( of)?
1.She has a great time （cooking,烹调） dinner.
2.The summer （vacation,假期） is about 50 days.
3.He is writing to his parents （alone,独自）.
4.We like the （weather,天气） here.it is not hot or cold.