1 . 戴维不像他哥哥那么聪明，但他很勤奋。
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2 . We ________ the best noodles in the restaurant. Come and try our delicious noodles and enjoy our excellent ________ (serve)

3 . All living things ________ (取决于) on the sun to grow.

4 . In modern society, people in our country often ______ (交流) with each other by Wechat.