问题描述：
1.If you know the answer of the question,please n____ your head.
2.The meeting began with a ____(an exchange of views on some topics) about a survey.
3.Each of us is a __(a native or naturalized member of a state or other political community) of Earth,so it's our duty to protect it.
4Mr Green lived in Canada for a c____ of years before he came to China.
5.The style of life has g____ changed over the past few years.
要说明理由,有急用
2.The meeting began with a ____(an exchange of views on some topics) about a survey.
3.Each of us is a __(a native or naturalized member of a state or other political community) of Earth,so it's our duty to protect it.
4Mr Green lived in Canada for a c____ of years before he came to China.
5.The style of life has g____ changed over the past few years.
要说明理由,有急用
问题解答：
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