Hillary Clinton, at the first official event of her presidential campaign, ______ the ideas that she said will be at the heart of her campaign.
Having been asked about the question again and again,_______.
---I will never forget when we met the famous writer---Neither will I. He______ some goods and was at the checkout of a supermarket.
If you keep your attention _______ learning, then you can get good grades in your subjects.
He is such a person ______ always helps others without claiming a reward, ________ makes him popular in the community.
-----Why do graduates like to work in the eastern part of China?------ Because the economy there is _________ stronger and there are more chances.