用所给词的适当形式填空(10分)
___________, our planet, Earth is becoming more and more crowded.(sad)
Most of my classmates had gone to celebrate Mr. Wang’s_________(44) birthday when I got there.
Humans on Mars will have to wear special boots to make___________(they) heavier.
The dancer fell down while she______________(spin) on the stage.
At present, it may be difficult to imagine_______________(develop) the desert.
The big prize is for one of the most famous_____________(invent).
I don’t think man will have robots______________(control) computers in the future.
Are you certain meals in the form of pills are much___________(taste)?
How many___________( toy) trains does your brother have?
The Summer Palace is a famous Chinese-style garden___________(build) in a natural landscape.