问题详情：
阅读短文，从方框中选择适当的动词，并用其适当形式填空。有的需要加助动词或不定式符号（每词限用一次）。
As a Chinese teenager, do you often give up your seats to elders? In China, teenagers are encouraged (1)________ up for those who need help on buses.
However, in London, every teenager from 11 to 15 years old must (2) ________the “courtesy pledge (文明宣言)”. It orders teenagers to behave politely when they travel in the capital. If they don’t give up their seats to old, pregnant (怀孕的) or disabled people, or behave impolitely, they will lose their free travel cards
Does that mean they will lose their free cards forever? The answer is no. If they want (3)________ their cards back, they need to carry out unpaid community work.
“Young people enjoy (4)________ for free, so they have to take responsibilities(责任).” London Mayor(市长) Boris Johnson (5)_________.
【回答】
stand get eling
知识点：选词填空
题型：阅读填空
