He stayed over extra day in Beijing in order to visit the Great Wall.

1. He stayed over extra day in Beijing in order to visit the Great Wall.

【考点】

不定冠词;

【答案】

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语法填空（单句）普通

1. We should take the advice of the woman who is expert in foreign language.

语法填空（单句）普通

2. The China-US trade war has now become a hot (话题).

单词拼写（单句）容易