观察以下图片，结合所学的知识选择正确答案（ ）①我国形成了平等团结共同繁荣的民族关系②我国实行民族区域自治的制度③民族平等的原则④消除了民族差异
Mr. Li awarded me a_prize for my wonderful performance at the English party. Which of the following is correct for the underlined word?
- Shall we go to visit the Science and Technology Museum this coming Saturday?-
- Congratulations! You're chosen to be an exchange student to Britain.---
Nowadays new taxi apps（打车软件）_ _ to help people travel around more easily.
Mr. and Mrs. Wang _ _dinner when the light in the kitchen went out suddenly.
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