根据句意填入适当形式的词，首字母或中文已给出，请在答卷上写出完整的单词。
Public bicycles in Foshan can help p__________ the development and use of public transport.
Both the earthquake and the flood are natural d__________.
Anything that is dropped falls towards the ground because of the force of g__________.
Because of his hard work, he has got b __________ achievements in the field of physics.
You’d better not go to Guilin for Golden Week. It is c__________ at that time.
I am sorry to tell you that your son c__________ (犯)a terrible fault just now.
During the weekend, I usually go __________ (骑自行车) in suburb areas with some friends.
Bill stopped__________(挥手) to us and drove away.
He chose Germany, but __________ (就自己而言) I would like to go to Spain.
I am fond of classical music now, but in the past I __________ (更喜欢) pop music.